What Jersey suggested is a great example of how to get yourself to do stuff. Just make a schedule of stuff you need to do, and tell yourself you only need to spend 10 minutes at a time on each. When I'm depressed, I tend to procrastinate on weird things, like paying bills, too. And it's not that hard, and I KNOW it's not hard, but somehow it feels impossible. So, I don't let myself sit down or turn on my computer when I get home. Sometimes one day will be "taking care of all the bills" day, which doesn't really take that long. I don't know what your grocery situation is -- I happen to work close to a supermarket, and it's an easy stop on the way home -- but you can always make small trips frequently instead of overwhelming yourself with one big trip.

Basically, as others have said, set very reasonable, totally doable goals -- and for me it REALLY helps to schedule it. Somehow saying, "I have to do my laundry at 2pm on Saturday" makes it easier for me to do it. That also includes scheduling screw-around time, which, as Lola mentioned, can be a good reward.