I work out in the evenings, around 7 or 8 pm.
After my workout, I shower and enjoy a PWO shake at the gym's juice bar. At that point, I select a good looking woman (from the gym or behinid the counter) and I invite her home with me.
We have 25 to 45 minutes of intense sex, then I send her on her way. My evening cardio is complete, and I sleep very well afterwards.
It's that easy... I don't know why champs don't figure that out.