
1. I used an obscure stash yarn that worked out great for tunisian crochet. It's Austermann Marco Stretch

2. The yarn is discontinued so I had a finite amount: would 10 skeins be enough for a jacket? To be on the safe side I went with cropped and shaped sleeves, cropped length, and minimal collar and front overlap. The yarn seemed sporty to me so I pictured a zip-front hoodie style, and would add pockets and a hood with leftover yarn.

3. The yarn was like felted spaghetti to work with and looked lumpy in every crochet swatch I tried except tunisian simple stitch (tss). The tunisian fabric came out stretchy, smooth, and soft & spongy enough for my kitten! I was not in the mood for long or cabled tunisian hooks, so....panels, right? I haven't seen many sweaters done this way lately. Making the panels was great fun, but how did I want to join them? I decided to make the seams a decorative element, so more swatching! (But check out ARNie's join-as-you-go tutorial) Correction added 9/30: See ARNie's comment on this entry; this link is part of Cindy's Crochet Pages. Great job Cindy! Thank you.
4. The last experiment concerned shaping.

I'm very pleased with the results, although I wish the yarn blocked better. There's a pic of me wearing it on Margaret's blog--scroll down to the 2nd photo. At the conference people especially liked the contrasting stitch textures, and some thought the seams were cables :-)
I would definitely construct a garment with tunisian panels again. I created a way to make "panel maps" in Garment

I had about 1 ball's worth of yarn left over. I paid $3.19/ball for this yarn about 4 years ago at http://www.elann.com/, so not bad for a $30 sweater, huh?