Write out, and each of you sign a contract to protect both of you. A simple contract would state who pays for what, what is included, when payment is expected, (always get the money before or when you deliver! Never agree to payments unless they are in advance). Make two photo copies, and each of you sign both. Keeps everything on a business level. Unfortunately some folks will ask you to make something, then spend their time begging for a discount ("since we are friends", "since it is so easy for you", " since you already have the fabric", etc.) Ask me how I learned this... Just remember that this is how we enjoy ourselves, not how we let others drive us crazy. Lol!