PLEASE make Photoshop undo not remember layer selections
This has been driving me up the wall since many versions of photoshop.
You have a layer selected, now you create a new layer and do something to it and undo that. Photoshop will undo what you did AND SELECT THE PREVIOUS LAYER
Draw…
Nah no good, undo.
(Photoshop undos and selects previous layer)
Click back to the layer I was working on.
Try again..
Nah no good, undo..
(Photoshop undos and selects previous layer)
Click back to the layer I was working on.
Start drawing again… Only to find out I forgot to reselect the layer I was working on so now Im drawing on the wrong layer
FSFSFSFSFSGHSKFJK:HUF GARRRR! FOR FUCKS SAKE (Throws things around)
This is seriously the only thing in Photoshop that PISSES ME OFF!

annoyed the shit out of me – you need to change your keyboard shortcuts between step back and undo….
more here….
http://forums.adobe.com/thread/430707
enjoy