1) My 1x6 inch quilt ruler - I use it for everything! 2) White quilt marking pens - again, I use it all the time. 3) Command hooks - Allows me to hang my cutting mats and rulers on the inside of a closet door. 4) Painter's tape - I use it to mark a perfect scant 1/4 inch seam guide on my machine and then add about 6 layers on top so that the fabric butts up perfect and I never have to worry about seams that are too wide.