Sex and the moment
Sex is more enjoyable if you can first clear your mind of other worries from the work day, or of what chores you should do afterward, and focus fully on the experience you’re having with your partner.
This doesn’t have to be anything fancy, and there doesn’t have to be anything religious about it: a minute or two of calm and deep breathing with your eyes closed while you think about nothing other than the feeling of the air moving in and out of your lungs, followed by a minute or two of thinking about nothing other than your partner while you continue to breathe in the same way, would probably be more than enough to make a big difference for most people.
Hot baths are a great place to do this: since they make your skin feel differently afterward, they serve as a physical reminder that you’re going to be focusing on something sensual for a while.