Set a 15-minute timer. When it dings, stop. You will want to continue. Don't.
Day 1 — Your nightstand
Day 2 — One kitchen drawer (pick the worst)
Day 3 — Your wallet or bag
Day 4 — The fridge — anything expired
Day 5 — Medicine cabinet
Day 6 — One shelf of the pantry
Day 7 — Your car's glove compartment
Day 8 — Under-sink in the bathroom
Day 9 — Your email inbox — unsubscribe from 10
Day 10 — The entryway (shoes, jackets, mail pile)
Day 11 — One closet shelf
Day 12 — Desk surface
Day 13 — Drawer of random cables
Day 14 — Phone home screen apps
Day 15 — Day 15 — pause. Revisit nothing. Clean one thing again.
Day 16 — Kids' toy bin (one bin only)
Day 17 — Your computer desktop (files)
Day 18 — Under the bed
Day 19 — Spice cabinet
Day 20 — Mug collection
Day 21 — Tupperware graveyard
Day 22 — Books you won't re-read
Day 23 — The "junk drawer" — you know the one
Day 24 — Makeup or grooming products
Day 25 — Underwear drawer
Day 26 — Purse or backpack
Day 27 — Holiday decorations
Day 28 — One bookshelf
Day 29 — Your photo camera roll — delete 50
Day 30 — Day 30 — donate the pile to one specific place, today.
Declutter is maintenance, not a project. Pick one area per week after this.