In all seriousness, Thumbdrives are your best bet and they are CHEAP these days compared with what they used to be. I remember a few years back seeing 256MB drives for 40 bucks whereas nowadays you can get a 1GB drive for 30 or so. Go for it.
Thumbdrives start to become very limiting pretty fast. I have all kinds of media, not just pics (and no, not just pr0n), and I've far exceeded even an 8 GB thumbdrive. I actually just bought a RAID 0/1 enclosure and plan to move everything to that (both personal data as well as media). Sure it's a HD w/ movable parts, but in RAID 1, everything is mirrored.