Welcome from S. California! Favorite tool: Seam ripper. Invest in a good, sturdy one or two... Lol! Since you asked, my advice is to attempt to stay organized from the get-go. Invest in room organizers such as fabric boards (comic boards or mini bolt holders or material to make your own concept of one), thread cases, sewing basket, good set of fabric scissors (and don't use for anything non-fabric). Do not buy cheaply made thread or machine needles...or sewing tools for that matter. And above all, read and search thru the threads on this board regarding any subject matter. Those before you have traveled the same path and can save you money, time, and many headaches. Believe me!