I have a simple rule while riding - no thinking about anything but the ride. I ride fast and to keep myself safe I want all my attention on the road (looking at the scenery is allowed.)

Whenever I catch myself thinking about work or cooking dinner or anything else, I re-direct my mind to the road. Riding is the only time I can get my head really empty and the stress relief is unbelievable.

Needless to say, no headphones, ever.