Twitter here as well, but here's an odd one to add to the mix: headphones. Specifically, I've somehow managed to collect some half-dozen pairs of head/earphones just in the past few months. Heck, just today I picked up a pair of Grado SR125s at Yodobashi in Yokohama, in my apparently neverending quest for aural bliss (without completely breaking the bank in the process).
I can't wait to get back to the States, so I can continue the process of replacing all of my AAC/MP3 CD rips in iTunes with Apple Lossless. Yes, I am obsessed.