Hmm, favorite little tool? Besides my seam ripper? :lol: I keep a spool of scotch tape & one of double sided right by my machine. My new machine has a clear bobbin cover that tends to slide open so I tape it shut (easy enough to peel off tape when I change the bobbin). And the double sided is for the weird sewing I do for work with this plastic stuff that's slippery to hold onto. I also keep a few clothespins handy for clamping layers together, cheaper than binder clips & well, I had a ton of them.