There are times when you just have to get out of that house. We've had snow since early December, '07, and I'd had enough. The sky was blazen blue, and I got my double sided axe and went out and hacked an old red oak whose top had been ripped off a year ago. That rich wood smelled pungent and it gave me a good sweat for an hour last weekend. Something about working out in the air really helps your spirits.
This is a great time to spruce up, or start, a mineral lick. Put them near an active trail in good cover, preferrably in the woods. Set up a trail cam and see what happens.
Also, get out and check for sheds. You might find a nice rack that ran past you last season...
