Northwest Graphic Supply Co. — The screenprinting general store!
4204 East Lake Street
Minneapolis, MN 55406-2203
(612) 729-7365
http://www.nwgraphic.com/

Anchor Paper — For big paper orders!
(800) 652-9755
http://www.anchorpaper.com/

Wet Paint — St. Paul Art store with lots and lots of paper to choose from!
1684 Grand Ave
St Paul, MN 55105
http://www.wetpaintart.com/

http://www.silkscreeningsupplies.com/ — Cheap online supplies!