Mechanical pencils. White gum erasers. Crayola Ultra Clean markers & crayons (for marking quilts). Drawing pads for quilt designs. Envelopes and/or sandwich bags to store applique pattern pieces. Sharpies so I can darken any patterns enough to see through to trace applique design onto my background fabric for needle turn. Also, this year I'm getting some binder rings because I saw a tutorial online by Heather Thomas, National Quilter's Circle, where she made a sampler "book" of different quilting fillers & motifs to refer to herself or share with clients. She punched grommets in the fabric & then attached the different "pages" of the quilted fabric together with binder rings. So clever! Here's the link:
https://www.youtube.com/watch?v=AnAriXmGjPA
Plus, sometimes I just get a few fun things either to work on my designs or to use for fun in my Fiber Research journal. I like making it kinda like a scrapbook type style so sometimes I find fun cardstock, stickers, stencils, stamps or whatnot just to play.
Thanks for posting this thread! I'm sure we'll get all kinds of great ideas from it!