1) Eat right - nothing makes you feel like shit like a bad diet. Yes good food costs more - spend the buck and if you don't cook this is a fine time to learn.
2) Work out - if you don't - start - if you do - keep it up and maybe kick up the intensity a notch.
3) Network your ass off - that's the gig these days - you gotta make your own opening - meet people, collect business cards, spend a half day on the phone and sending email every day "touching base". (Just ask what's going on with them - offer to help - pass on leads if you hear of any you can't use).
4) Find fun free stuff to do and do it - try to enjoy your extra time - go to museums - free concerts - whatever you can that's cheap.
5) Check your local business journal - it will have a leads section - start going to these meetings first one is free - same for rotary club, optimist club, lions club, whatever - wherever people gather just go - have a good time - enjoy people - do NOT say you're looking for a job - DO say you're looking for more networking opportunities in your field - can they recommend any gatherings.
6) Print personal business cards - get them cheap from vistaprint.com if you're in the US - don't pay extra to have the vistaprint logo removed - I see vistaprint cards everywhere - even with people who have successful companies - you'll just look frugal.
7) Limit your computer time to 1/2 day. Its easy to bury yourself in the web - it just makes you tired and feel spent. Keep up on technology - start a shareware project if you like - but its really easy for us types to use it as a crutch.
8) Join a job search group if you can find one - swap leads.
This is what I'm doing - I like to think it will lead to a good position soon. At least it makes me feel hopeful.
Good luck.