by Erin Zammett Ruddy

Should you sleep with your ex? Wear Spanx on a date? Go out with a guy who's younger than you? Find out how experts, authors and readers suggest you solve these dilemmas and more.

1. Is it OK to have a "friend with benefits"?

59% of readers say YES.

2. Is it OK to friend your exes on Facebook?

72% of readers say YES.

Yes: "I'm Facebook friends with six of my exes. Honestly, it would have been weirder to unfriend them after having once been so close, especially when things ended amicably. You just have to check yourself periodically for stalker-like behavior. My rule: If I'd be embarrassed if the ex saw how much I was on his page, then I need to cool it. And maybe hide his updates for a while." -- Elizabeth, 31, New York City

No: "Facebook almost ruined my marriage. My ex is one of those constant status updaters. I became obsessed with his whereabouts. He would talk about doing all these fun things, and I'd look at my relationship and think, We don't do that. I actually began to resent my husband. Eventually the ex and I met up, and that's when things got really bad. Bad as in we slept together. My husband found out, and we wound up separating. Now we're working things out. But man, nothing good comes from friending your ex." -- Anonymous, 33

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