Once you have a clean slate, divide your items into “keep” and “toss” piles. Only hold onto the items you need to have with you on a daily basis. Old receipts, extra Chapstick, and the second or third pack of gum should be returned to their proper home in the office, pantry, etc. With your remaining “keep” pile items, further separate them into familiar groups like lipsticks/skincare, snacks/gum, paper/pens, and so on. You’ll want to keep items organized as “families” so that they’re easy to find when needed.