Look out! It’s another useless USB gadget. The USB Memo Lamp provides different color combinations to light up your room or office. Strangely, however, you can also use the included pen to write notes on the lamp itself. Whatever happened to using good old-fashioned Post-it notes, or even your hand for reminders?This wacky Korean product sells for 18,500 ($19.63 USD) on FunShop.co.kr.