You shouldn't have to be at the top of your game around your significant other 24/7, but there should be a balance. Experts offered their advice to help couples talk about and determine their own comfort levels and which extra efforts should never fall by the wayside.

Personal hygiene is a must. Sure, there will be days when you skip the shower, but don't make it a regular habit. If your partner asks when you last showered or brushed your teeth, don't take offense. But it's a good idea to take that shower or brush your teeth immediately, because you probably smell. "If you wouldn't go out in public without showering, don't do it in front of your partner," said Jane Greer, a marriage and family therapist.

Speak up when something grosses you out. Sitting by silently while the person you hope to spend the rest of your life with behaves in a way that repulses you isn't helping the longevity of your relationship. Don't be afraid to say, "It turns me off when you do this" or "It makes me feel less respect for you when you do this," said relationship expert Carole Lieberman.

Don't ignore your partner's complaints. If your significant other has told you for the millionth time that he or she can't stand it when you burp, don't continue to do it and assume it's a cute annoyance. This will cause the problem to explode, said couples therapist Stan Tatkin.

Jessica Reynolds