1) i used to go gym, at least twice a week. it's inexpensive for non-branded gyms. you may search small ones in your area, it could be as little as $10/mo. what you really need is treadmill for legs, and upper body gears like dumbbells, pulldown weights, etc.
2) now i am using a station programmable bike for legs, a composite equipment and dumbbells in my home.
3) every morning the first thing i do is 30 minutes bike riding (in mountain pattern) which makes me sweat, and 10 minutes arm training. then shower/breakfest/drive to work. this is the way to keep me energized for full day.
4) at 8:30pm, i walk outside for 30 minutes (i don't enjoy sitting watching tvs except nba finals :).
5) on one day of a weekend, mostly on saturdays, i do mountain hyking, 6-10 miles. with my strength built from biking, mountain hyking is an easy part, but it can't be skipped as it's to get various muscles working.
i sit in office for entire day, this works for me. i have been doing this for past 12 years, the result is obvious - doing 50 push-ups is a bliss...
you and your hu*****and can do the same, never late. the real challenge is probably self-decipline and unremitting...