December 24

• In-flight snacks: 7 AUD
• Suica card recharge: 5000
• Keisei Skyliner ticket: 2400
• Via Inn Akihabara - 4 nights accommodation: 23000
• Konbini (Seikatsu Saika) snacks and drinks: 1001

Total: 31,401 yen and 7 AUD

December 25

• Vie de France: 730
• Vie de France: 305
• Yodobashi Camera - Bmobile Data SIM: 3480
• Osaka Ohsho - Gyoza and beer: 1380
• Family Mart - snacks: 270
• Eva 3.0 movie: 1800
• Family Mart - snacks: 774
• Game centre: 300

Total: 9,039 yen

December 26

• Robot+Robot, Robotics;Notes keychains: 2200
• Cord school uniform shop, Nakano Broadway: 2030

• Nenrinya, one third of a 3-section baumkuchen: 1600

• Manneken, waffles: 471
• Konbini (Seikatsu Saika) drinks: 268
• Konbini (Seikatsu Saika) drinks: 260

Total: 6,829 yen

December 27

• Starbucks: 420

• Volks consignment boxes, Miku figure for Trej: 1380

• Excelsior Cafe: 450

• Good Smile Cafe, Miku figure for Trej: 3900

• Cospatio, Frau wig and cosplay items: 9849
• Iosys, fake Galaxy Note 2: 999
• KFC, 4-piece smart value pack: 1190
• Vending machine drinks: 500
• Arcade games: 600
• Konbini (Seikatsu Saika) drinks: 257
• Coin laundry: 400

Total: 19,945 yen

December 28

• Via Inn extension fee: 4500
• Akky - luggage bags: 3150
• Vie de France - bread: 738
• Uniqlo Ikebukuro - thermal wear: 4060
• Don Quixote - yoga mat: 999
• Konbini (Family Mart) drink: 120
• Coin locker initial payment at Akiba: 500
• Keiyo Drug Tokyo station - bandaids: 399

Total: 14,466 yen

December 29

• Konbini (Sunkus) snacks and drinks and thermals: 1897
• Taxi to Big Sight: 630
• Kantoku - new set: 1000
• Kantoku - new set: 1000 (to be sold off)
• Robotics;Notes set: ???

• Yanzikatu - Wordless Kyosaya book: ???

• Cologero - Pachimonogatari: ???

• Kabocha Yuzu - Inuboku SS illustration collection: 400

• Musashino - Haikyo books: 2000

• Seikei Doujin - art collection set: 1500?

• Konbini (Family Mart) snacks and drinks: 649
• Taxi from Big Sight: 500
• Konbini (7-11) snacks and drinks: 100
• Konbini (Seikatsu Saika) snacks and drinks: 330

Total: 10,006 + ??? yen

December 30

• Melonbooks doujin goods: 6865
  • Muffler: 840
  • Clockwork clearfile: 400
  • Clockwork book: 1365
  • Rose Gun Days OST: 1260
  • Dominated Dancehall: 1500
  • Auxiliary Brightness: 1500
• Konbini (Sunkus) snacks and drinks and umbrella: 1270
• Don Quixote - Hairdryer: 600 (Blitz paid 380)
• Don Quixote - Cosplay seifuku: 2990
• Coin locker top-up at Akiba: 1500
• Konbini (Sunkus) snacks and drinks: 491
• Yanaginagi - lux imperium single: 1500
• Dear Stage: ? was it this night?

Total: 15,216 yen

December 31

Comiket

• Sound Ave - Accumulation: 1000

• YTR Records - Brilliantez: 1000

• Technofuyuno - Eva Q book: 500

• Technofuyuno - Glyphponics: 500

• Gewalt - Girls und Panzer book: 735 (pay Ast for this)

• Paraiso Lang - Ikamusume Lambda programming books: 0 (to be reimbursed 2300)
• Hige Driver - Tokyo Soda: 0 (to be reimbursed 1000)
• Technorch - Gabber: 0 (to be reimbursed 1300)
• Technorch - Metamorphosis: 0 (to be reimbursed 1500)
• Blasterhead - Live at Blip Tokyo 2012: 0 (to be reimbursed 1000)

• Active Mover - Kurokami set: 0 (to be reimbursed 3000)

• Necoco - Project Necoco f: 0 (to be reimbursed 2000)

• Ushijima Iiniku - Invaders Must Die: 0 (to be reimbursed 2250)

• Kneehigh ga Suki - Meganekko cosplay ROM: 1500

• John Hathway - Electric Alice collaboration with Teddyloid: 2000

Other

• Konbini (7-11) snacks and drinks: 485
• Subway - Spicy Mexican 6" sub: 390
• UDX building - big dinner at western place: 3100
• Toranoana - doujin books: 7716
• Vending machine in Akiba - Dr Pepper: 150
• Coin locker initial payment at Akiba, shared with Blitz: 100
• Konbini (Sunkus) snacks and drinks: 404

Total: 33,930 yen

January 01

• Suica card recharge: 1000
• Via Inn Akihabara - 2 nights accommodation: 9750
• Yodobashi Camera - Bmobile Data SIM: 3480
• Kanda Myoujin shrine food: 700
• Konbini (Family Mart) drink: 100
• Pasela - 4hrs karaoke: 3840
• Konbini (Seikatsu Saika) snacks and drinks: 856

Total: 19,726 yen

January 02

• Kanda Post Office - Packing boxes: 550
• Kanda Post Office - EMS shipment 6660g to AU: 10700
• Comic ZIN - doujins: 1260
• Comic ZIN - Classic Camera Girls Plus One: 2100
• Toranoana - Doujin books: 3675
• Toranoana - Doujin books: 2539
• Toranoana - Doujin books: 105
• Dinner at udon joint in UDX (next to Mister Hatt): 530
• Konbini (Seikatsu Saika) snacks and drinks: 215

Total: 21,674 yen

January 03

• Fujiya Camera - 70-200 f/2.8: 122850 (on credit card)
• Suica card recharge: 2000
• Train from Otsuki to Kawaguchiko (300yen express fare): 1410
• Station Inn Kawaguchiko: 7200
• Tachibana restaurant in Kawaguchiko - Katsudon: 750
• Konbini (Lawson) snacks and drinks: 1127

Total: 135,337 yen

January 04

• Hotel breakfast: 500
• Retro Bus all day ticket: 1300
• Lunch at Fuji tourism centre - udon and nikuman: 850
• Cider and Snoopy Water from Fuji tourism centre: 350
• Wind cave and Ice cave viewing combined ticket: 500
• Konbini (7-11) snacks and drinks for dinner: 0 (was 2256, but taken from Suica)

Total: 3,500 yen

January 05

• Train from Kawaguchiko back to Otsuki: 1110
• Konbini (Otsuki station platform) snacks and drinks: 496
• Kobeya restaurant in Shin-Yokohama - breads: 577
• Bic Camera in Shin-Yokohama - Slik tripod: 2380
• Shinkansen food trolley - Coke: 130
• Toyoko Inn Himeji - 1 night: 4265
• Ramen joint next to JR Himeji - garlic ramen: 500 (guess)
• Supermarket in Himeji - dinner: 1592

Total: 11,050 yen

January 06

• McDonalds near JR Himeji - Filet-o-Fish and Chicken Cripsy burger for breakfast: 550

• Cafe Saintmaria in JR Himeji - Panini and iced coffee: 580
• Himeji castle - main entrance fee: 400
• Himeji castle - Egret's eye view fee: 200
• Club Sega - Project Diva: 100
• Excelsior Caffe - Large Latte: 410
• Toyoko Inn Kagoshima Higashi - twin room two nights: 6395
• Izakaya dinner with Akira: 1800
• Konbini (Sunkus) snacks and drinks: 464

Total: 11,049 yen

January 07

• Kagoshima Famiresu - Katsu Kare set: 1200
• Dinner at izakaya - karaage, shochu: 2000
• Konbini (Sunkus) snacks and drinks: 1246

Total: x,xxx yen

January 08

• Ferry ticket to Yakushima: 3600
• Yakushima supermarket Yakuden - snacks and drinks: 1884
• Shio-something - dinner: 1300
• Yakushima Youth Hostel - laundry: 250

Total: x,xxx yen

January 09

• Shiratani Unsuikyo admission fee: 300
• Petrol for rental car - fill up: 1000
• Yakushima lunch - casual restaurant: 1000
• Yakushima supermarket Yakuden - apple juice jelly: 88
• Jetfoil ticket to Tanegashima: 3700
• Tanegashima Araki Hotel - 2 nights: 11760
• Tanegashima Sunseed supermarket - sheer tights: 525
• Ramen dinner on Tanegashima: 650

Total: x,xxx yen

January 10

• Tanegashima Plasse - suitcases: 16580
• Tanegashima Plasse - snacks and drinks: 877

Total: x,xxx yen

January 11

• Idemitsu - petrol for hire car 13.30L @ 169yen per litre: 1124 (per person, total of 2248)
• Toyota car rental - 1 day plus ~5hrs: ??? (about 12k total, split between 2 people)
• Tanegashima Sunseed - Yoghuruppe drink: 100 (overpayment to Ast, split payment)
• Cosmo Line ferry ticket from Tanegashima to Kagoshima: 3400 ??
• Vending machine on Cosmo Line - can coffee: 120
• Curry shop near JR Kagoshima-chuo - katsu curry set: 750

Total: x,xxx yen

January 12

• Kagoshima-chuo KFC: 640
• Thorpedo drink from vending machine: 150

Total: x,xxx yen

Sum total

• xxx,xxx yen == AUD $y,yyy @ zz.z yen/dollar
• yy.yy AUD for costs incurred getting home
• About AUD $1,660 for airfares

Approximately $y,yyy from start to finish.