I was just reading your post on solarpunk games - thanks!
xylem
I just completed my first substantial sewing project, using a pattern from this site! My hems aren't the most even and the neckline was really tricky but I'm pretty happy with it. This is the Sven sweatshirt design, and I used a somewhat heavy knit cotton/polyester fabric. It fits great (as you'd hope!) and will probably become my new winter pajama shirt.
The site is great to use - there are good pictures for how to take each of the measurements you need, and I liked the ability to manually optimize the part layout to minimize the amount of paper it used. I saw a tip on YouTube to piece the pattern together by taping it to a large window or glass door so you can see the overlap between the sheets, and that worked great for me.
My next goal is to do a Simon shirt in flannel - decent step up in complexity so I might do a few other simpler projects first.
If youve got the space, it can be as simple as just piling them up and leaving them for a few years. My mom does this, they take about three years to break down into usable compost. They'll go faster if chopped up by running the lawn mower over them before raking, or using a reverse leaf blower that shreds them.
There's also definitely no need to buy a fancy compost bin - you'd do just fine with a garbage can with the bottom sawn off to let the worms in. My municipality also had bins for sale for like $25 that have worked well for me.
freesewing.org has a boxer briefs design if you're interested in making your own.