http://www.irfanview.com/This free little program is a jewel when your playing with lots of images.
Opens & saves to every graphic file type known to man, yes even windows icon.
Grab a corner to crop/cut with a single mouse click & drag.
Extremely full featured and capable this program is amazingly small and well written. The only thing it does not do is create from scratch. You need paint, pspro, etc for that.
So small & well written it can be run from a CD without being installed at all.
Ohh yes & best of all, its free, totally free. No ads, no shareware, no nothing.