Some drawers in the top row.
1) Extra supplies, such as spare cutting blades, extra rolls of adhesive, etc.
2) Ink pads, paints, and, though you can't see it here, glitter.
3) Heat embossing powders and pens, my heat gun, and, in the back of the drawer, two cans of Krylon Make-It-Acid-Free spray.
The other top-row drawers just hold blank envelopes for card-making.