I spend about 5 minutes on the bike going over everything when I get home. I always have something to fiddle with or adjust from the days ride. That way I know she's good for the morning. I put a light coating of lube on the chain every night and wipe the excess off in the morning before I ride. I clean the chain on Sunday nights. About every 2 weeks I throw the wheels in a truing stand and give then a tweak. The roads here suck!
I commute 35 round trip a day plus any social riding. Maybe its overkill, but there it is.