A lot of new shirt designers post here wanting to know how to design shirts. Often, though, their questions are too nonspecific to be easily answered well.
I think a partial solution for this might be to create a list of great tutorials, so new folks can pick through the list to learn new skills and ways of doing things.
Please link your favorite tutorials here.
Quick Halftone Tips: http://www.emptees.com/posts/158138-quick-tips-halftones
Jimiyo’s Halftone Reduction Guide: http://jimiyo.com/halftonereduction.htm
Heavyprints’ Watercolor Tutorial (video): http://www.youtube.com/watch?v=_dawHPcwJa0
Jud’s 10 Tips to Winning at T-shirt Design Contest Sites: http://www.shirtfight.com/blog/entry/10_tips_to_winning_t-shirt_design_contest_sites/
Quick Tips: Line work: http://www.emptees.com/resources/1831-quick-tips-line-work
Greg Abbott’s Process Walkthrough: http://www.emptees.com/resources/2191-process-walkthrough
Nils Vogeding’s T-shirt Design Process: http://iamthetrend.com/2010/02/05/a-step-by-step-look-on-how-t-shirts-are-designed/
Any others people should know about?