My wife ordered several of these Folding Purse Hangers for Christmas presents to all the women in the family. After using these she thought they were so great everyone with a purse should have one to keep in the purse at all times.

This model is one of the better types as it folds up around itself and does not have any sections sticking too far out. Thus it is as small as it can be kept easily inside of the purse.  It is about the size of a small-medium makeup compact.