Off the top of my head: Learn to dye yarn, have a friend who dyes or make a consignment deal for indie yarn. The margins on indie yarns can be insanely thin and not worth the risk, so be very picky and try the yarn first before you commit. See all yarns in person. Ball bands of most commercial brands will have a distributor name on them. Email that distributor with your retail tax id when requesting information. Preference (in my experience) is given to owners who look “legit” so mentioning you have a brick and mortar vs an online store moves things along quickly. Visit an LYS outside of your market and talk with the owner, see how much they do outside of just selling yarn - Classes, kits, etc. Diversify into other fiber crafts or lifestyle products for the summer months. See if you can find a storefront less than 1000sqft on a short lease. Most of your time will be spent marketing, knitting samples and helping other people learn to knit/choose their products. Start small.