Grout sealer roller bottle - used to cover the miles and miles of grout in the bathrooms. Decent but had a tendancy to leak a little. I'd probably do it with a thin paintbrush next time.
Drip and pour guide for paint cans. Again, decent but takes even more clean-up time than wiping down a can side.
Greatest gadget ever. It's $3.50 of heaven; the paint edger. I'm still going to tape everything in the room but this makes a fabulous straight line around baseboards, doors, and the ceiling. I'd buy another in a heartbeat.
This isn't a gadget, I just wanted to share. We finally picked out hardwoods for the first floor - a brilliant exotic doussie wood with a lot of tonal variation. I heart it so. It's very hard and resists termites. Not that I think we'll get termites (knock on wood) but it's a good thing. :)