There are dozens of tips out there to help you and your special someone have great sex. But here's the thing: It doesn't matter how much you study up if you aren't doing the deed. And if your goal is getting laid, it's best to be less spontaneous, says Ian Kerner, a licensed sex therapist in New York. 

In a post on CNN, Kerner explains that scheduling sex with your partner doesn't sound glamorous, but it works. He calls it a "willingness window" to make it clear this time is really about sexual arousal, not sex. He suggests setting aside 15 minutes twice per week to do stuff that turns you and your partner on—kissing, giving each other massages, or showering together. It may sound silly, but if it means better sex, there's no point in complaining, right? 

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