Obligatory new-icon post.
Also, picnik is a decent substitute for an actual graphics-editing program.
It's definitely geared towards photos, but it's perfectly good for resizing and color tweaking.
Looks like it integrates nicely with flickr, I might make a second flickr/picnik acct for snapshots that I don't force under the knife for a full photoshopping routine. That way I'd post more photos maybe...?