hey vc, i've been hitting it 4 days/week but next month i will switch over to 3 days for the remainder of the year in order to focus on finishing up a certification i've been working on. i, too, workout at home. here's my upcoming program:
day 1
legs: squats, lunges, leg extensions, leg curls, stiff deads & calf raises
day 2
chest & back: incline press, weighted pullups, rows, partial deads, shrugs.
day 3
shoulders & arms & calves: ez curls, hammer curls, skull crushers, various free weight extensions.
i hit calves twice a week so that's why i threw them in there again on day 3.
i do very little work for bi's and chest as they grow, no problem, vs other bodyparts such as tri's. this reduces the volume i do overall and helps with recovery. it also allows me to do more for other muscle groups on those days, like back, calves and tri's.
this program has worked nicely in the past for me; that';s why i use it from time to time. not only will it save you time, but your body will probably welcome, and prosper, from taking less hits (workouts) per week for a little while. then, of course, you'll respond nicely to the increased volume later on when you go back to training more frequently.
only problem is, you'll probably be itching to get some lifting done on those 'off' days... lol....