I've been making spread maps for my preferred spreads for years. I use old art calendar pages to create them; the paper is sturdy, and it's easy to create something nice when you have a colourful background already. Lately, I have used my little laser printer to print lable stickers for card positions. Nowadays, I prefer tailor-made spreads for a specific situation, and creating a spread has become an important part of a reading. However, I'll continue to use my SWOT spread and other old favourites, and having a spread map helps me to do the permutations that I like (moving all the cards clockwise around). I have seasonal spreads that I use regularly: for the solstices, equinoxes and the half-points between them. They are big spreads, and having my spread map ready really helps me jump into them again. They also give visual continuity, and that's important to me because I have been doing these readings for years, and I like to compare them from year to year. I even created a little helper to put my decks back into order since I shuffle and re-sort my decks a lot. Some of my older spread maps look a bit worse for wear by now. I should probably get an old calendar and get going again. Personally, I feel that creating things with my hands helps me build a connection. An imperfect hand-made map is more valuable to me than the perfect bought product designed by somebody else, but that's just me.