The weird and wonderful world of marketing: do check out "Top 10 ad-tricks in Tokyo's train stations", an interesting article "about how advertisers in the Japanese capital have thought up new ways to saturate train stations with their messages. Not content with traditional billboards and gift tissue packs, advertisers have covered the floor with stickers, clad pillars in mock tea bottles, filled every free space on the ticket gates, and covered the escalator handrail with hundreds of tiny QR-coded ads which, when scanned, pop information about local attractions onto your cell phone" (via Wired News)