We have tons and tons of 3M Command Strips throughout the house holding up picture frames... which means we are now taking down tons and tons of command strips to prepare for the move.
Most of them have come off perfectly... but on two so far the pull tabs tore right off, and those hooks were pretty well welded to the wall with no obvious way to get them off without risking damage to the paint.
The solution (thanks internet) is to take some dental floss, get it behind the hook, and saw your way all the way down. At the end it will almost seem like nothing happened, but you give the hook a little tug and viola... its off the wall.
You might need to pry a few small pieces off either the wall or the back of the hook, but those usually come off very easily and then you're done and on to the next.
Wish I had taken a few pictures, but it really is that simple.