This is an obvious, but excellent first step to relaxing.  Take a deep breath, close your eyes, and let your worries slide off of you - just like your trousers! Normal activities that are almost always done in clothing are relaxing and liberating without the nuisance of apparel.  You'd be surprised how much more fun vacuuming and cleaning might be in the nude! Who knows? Perhaps you are a better cook this way. Be hygienic and take care! Many people maintain that sleeping in the nude is much more comfortable. Just remember to set an alarm!

Summary:
Forget about your cares. Perform normal household activities. Cook yourself a meal. Take a nap.