One of the things that I love about REI is the annual dividend.
I take my little certificate in, pick something out and get it for either free or at a greatly reduced cost.
This year, I got this:
A Novara grocery bag pannier!
After they applied my dividend, I owed them a whopping 23 cents. Sweet.
I already have a pair of panniers, but they're heavy waterproof zip top compression dealies that are great on long trips (they stop load shift), but I wanted something that was a bit more short errand friendly.
This one has shoulder straps, and is about the size of a grocery bag (hence the name), so I can just throw it on the back rack and not have to do the squeeze and zip of the big panniers.
I love you, REI!