It's funny you should ask this. I told my SIL that I waned a GC to Joanns for Christmas. So, I'll be in this exact position a couple of weeks from now.
I've got 2 jelly roll quilt tops done, that need borders. I'd buy matching fabric for those. Also, I desperately need new little scissors. Mine are getting dull, except for the very tip. I'd also buy some random fat quarters and notions. I hope it all goes that far!!! lol
I love some of yours answers. Such a variety.