Hell yeah.

Just think about what one could do. HA pointed out a few things, including breaking laws for fun and not having to worry about consequences. You could take this further into stealing and hiding things as one person, then switching back to yourself to retrieve the stolen goods/money at a later time. (I would assume that the person being controlled would have no memory of the incident, considering that it wasn't their consciousness conducting the act.)

Interested in somebody? Become them, then tell all of their friends that they are interested in you (the original you), so when you revert back to yourself, your interest will have a bunch of people telling him/her that he/she is interested in you, until finally he/she gives in and confronts you.

Don't like somebody? Become them, then get into trouble, get fired (Don't like Obama? Make him resign -- but don't you dare let Biden take it), get speeding or parking tickets, whatever.

(EDIT: To expand on that ... become somebody, then get into a fight with you, intentionally get your ass whupped, and when you revert ... technically, you beat them up.)

Don't like paying bills? Become your landlord, draw up a contract that states you don't pay (or pay less) rent, then you can sign it when you become you again. Or you can write up a contract for somebody else to pay your bills, in exchange for whatever.

Hell, you could become somebody famous and commit to visit you, for a concert or party or anything else. When you revert back, the famous person would just think that they didn't remember making that commitment.

Get yourself into events that nobody else can. Make yourself some money, screw over people you don't like, live through people you live vicariously through.