I just bought a new seatpost rack (http://www.performancebike.com/produ...20_1981BLK.jpg) and I guess I thought it would be a cinch to use, but I'm stumped now on how to get any utility out of it. I can't seem to get stuff to stay on it, and the cargo net I got with it seems too tight. Seems like a silly post now that I think about it, but how do you guys use your racks? Should I buy panniers or a trunk? Or should I just find a crate and strap it on.. Anyways, happy commuting!