By the way you might like making kaleidoscopes.

I have found using compass and ruler only methods much more accurate because I don't have a drafting board or anything. The usual school supply rulers are not finely graduated enough to rely on them. In fact they aren't long enough for my purposes (although I can get a longer one if I want. The fun of deducing compass constructions is its own reward).

Even simple things such as drawing a parallel can become insufficiently accurate. With compass and ruler, much better. Ideally one should have drafting board and T square.