I find that there are certain items I use almost daily when sewing. The rotary cutter and mat are a must for me. I couldn’t quilt without them! Right beside them I have a ruler holder that is very helpful in organizing my rulers.
I also love my purple thing. It’s like a stiletto and comes in very handy when piecing curves. And my quarter inch stick.
For thread I am partial to Isacord threads. My sewing machine tends to shred or break other brands but plays nicely with Isacord.
I just bought this awesome little cart to hold all my threads as well.
Last but not least, a pair of ordinary garden gloves. They are invaluable when it comes to free motion quilting. The allow me to grip the fabric without straining my hands. So then I can sew longer.