You schedule appointments with dentists, massage therapists and hair stylists all the time, so why not schedule sex with your significant other? Experts suggest that doing so could actually save your relationship.

Keeping a sex schedule is apparently common for married couples. In a previous survey by Elle Magazine and MSNBC, over 80,000 people responded that they add sex to their to-do list, according to Focus On The Family Canada.

"Our sexual desire does wax and wane at different times in our lives, but that doesn't mean it changes for the worse," said Whole Health Psychological Centre sex therapist Rachel Needle via Yahoo. "Make a point to schedule intimacy. Some couples complain that scheduling sex makes it less exciting, but it certainly doesn't have to be."

While it's not a solution that works for all relationships, having scheduled sex could help couples for the following reasons:

1.) For practical people who keep their lives scheduled around the clock, setting aside time for sex is one way of making sure that romance is still part of the relationship.

"The assumption is sex is always supposed to be spontaneous or easy," said Chicago psychologist and sex therapist Shirley Baron via Chicago Tribune. "That really is a myth, a fantasy in the reality of our busy world."

2.) Scheduled sex keeps partners in tune with each other's sex drive. In many relationships, there's always one partner with a sex drive that's stronger than the other. By keeping a schedule, partners will learn to respect and value the time for physical intimacy. It gives both the chance to get in the mood, get back in the saddle and offer support and motivation for each other. This way, partners can really collaborate and improve on sex together.

3.) It eliminates rejection and resentments. When one partner is in the mood and the other has too much going on and is no longer energized for romance, what usually happens is one partner feels rejected, while the other could feel that their partner is being callous. This can be avoided if the couples have a sex schedule.

4.)  It gives couples something to look forward to. Sex schedules don't have to be rigid. It doesn't have to happen every week. The pair must agree to a convenient date where there's no possibility of cancellation. It could happen three weeks from now, but it will build up the anticipation and excitement, which should hopefully ignite passion in the relationship more.

5.) It gives partners the time to prepare and perhaps come up with creative ideas to make sexy times with their partner unforgettable. In some cases, it could even help to schedule a "fantasy" date, according to She Knows, with one partner doing all the preparations to surprise the other.