depends
when working (school teacher), try to ride in the afternoons 15-25 miles daily, but rain or having to cook supper will stop that
summers 30-35 miles a day most days, first thing in the a.m. Rain will occasionally get me
have discovered that for me 500 miles a month is best, so I try to hit that number. I have been 900 a month and that's too much for me, less than 500 and I feel more miles are needed. Don't always hit 500 during school, but try. Low light and cold in December and January I'll take more days off