«We may as well go to the movies». «There is no reason we shouldn’t do that». «We can go for a walk. We may as well go to the movies. What’s playing at the Los Angeles Playhouse?»
«You might as well watch television». «Since you’ve got nothing else to do, you might as well watch television».
«It wouldn’t hurt to get a second opinion». «It would be to your advantage to do it although the result is uncertain.» «Your lawyer gave you a piece of advice. But before you act, it wouldn’t hurt to get a second opinion».