Check it out! I'm just starting to get into using Backpack to organize my life, but I tell you, I'm totally in love with all of 37signals' products. It's worth checking out at least the free version - I'm probably going to upgrade to a paid version soon.

If you plan to sign up, please use this link, because it'll get me some referral points and such. My affiliate code is BPNHJZ. Thanks! Enjoy!