So I'm down to three days of lifting, about an hour each time, plus ten minutes of intense cardio at the end, one or two 20-25 minute interval circuits and three Aikido classes. FYI, Aikido has become a bit less aerobic lately. (Not sure why.)
Also, I walk everywhere I go, unless I have passengers. The public library, Starbucks, bookstore, train stop are all about a mile each way. I do eight to ten round trips a week.