Wooohoooo! This was amusing. :D
Cutting out hair... I had more trouble with the hand. :D
Cutting out body, changing background, putting some shadows.
Quick selection tool, copy and paste, drop shadow effect.
I cut out an armchair, imported it into a forest and then experienced great suffering from the burn tool. :) (The original chair is white, white, white.)
Cutting objects, using masks, blending fade, content-aware cropping.