I have to add my freaky entry: The SUPER SPY NIGHT PEN (e.g., http://www.physlink.com/estore/cart/NightPen.cfm). It's great at night, when you're trying to get to sleep but the thoughts keep coming. Doesn't wake up your partner! From: A few thoughts on capture http://ideamatt.blogspot.com/2006/10/few-thoughts-on-capture.html