Did you forget your anniversary again? Missed your significant other's birthday? Those Post-It notes and alarms on your PDA clearly aren't working — how about some physical pain? Wrapped around your finger, the Remember Ring (get it?) will make sure you don't forget an important date by heating up to 120°F for 10 seconds 24 hours before the big day, and then doing it again every hour on the hour. It's equipped with a micro thermopile, converting the heat from your hand into electricity so the tiny battery stays charged and the internal clock never stops. Your jeweler will program the date, then you can just slip it on and forget your troubles; after all, that's what the ring's there to remind you about. Not a bad idea, really, since it's wearable and isn't something you might forget to take with you like the Mini Reminder. But before you forgetful folk start lining up for it, we're sad to report the ring is just a concept item right now. We can only hope the designers have some other way to remind themselves to actually make the thing. — Peter Pachal

Goldsmith's, via Shiny Shiny