I generally try to get out three times a week, usually evenings. I've previously done five or six times per week, but feel better, generally, just doing three. The rest days seem to help, but to be fair it's more a matter of circumstances dictating the free time I have. Given the chance I'd probably do more. How about the rest of you? Do you structure your running and try to get a minimum mileage / number of days in, or are you more relaxed? And do you think rest days help?