I use a WORM bait bag from Bass pro to keep my hand piecing organized! I actually have 3 different size bags with different projects in them.
I got a mini tape measure and telescoping magnet in neon green from the automotive store $2.50 for the pair!
I also use the Newsprint paper for paper piecing, and frost cloth that Lowe's used to cover their plants and was throwing out, for a foundation on string piecing blocks!
My favorite quilting notion stores have got to be staples and lowe's!