Despite the fact that Izzy Swan is known for making wildly complicated and sophisticated woodworking projects, this video on simple, shop-made jigs seems useful, especially if shop work is something you’re just getting in to.
He takes a suitably deep dive into making them too, telling us everything from the fact that he has a framing square for marking 90s in the shop that nobody else is allowed to use and that he uses his finger as a marking gauge—and it is surprisingly accurate.
He shows a cross-cut sled and how he makes it accurate and goes deep on a tapering jig. Check it out.