My video (shameless advertising) that's in that thread has helpful hints as well as a shopping list and some links. So you might be interested. I stole a lot of stuff from here and any videos that I could find and stuck it in one handy dandy little video. I didn't include the poncho (I took one) because I didn't use it. But they are cheap at a couple dollars.
I stayed at New Beginnings but a lot of cities have the Extended Stay motels. I don't think they are so nice (3+ stars usually), but they do have little kitchens (microwaves, refrigerators, and sometimes a burner or two, coffee maker, etc) which would be very handy for a longer stay. Very funny though, I stayed in one once and there was 1-2 of EVERYTHING. Don't forget your coffee filters and that sort of things, but they do have sheets and towels. Sometimes they have weekly rates.
--Jay