The five steps
1. Audit your closet
Take everything out. Sort into three piles: love and wear often, maybe, and never wear. Be honest about the "maybe" pile — if it has not been worn in a year, it goes. Donate, sell, or store the discards; only the keepers move forward.
2. Define your lifestyle and palette
Write down what a normal week demands (office, casual, events) and pick a palette: two or three neutrals as the base plus one or two accent colors you already wear. Pull your keepers that fit the palette; set aside the rest.
3. List the essentials
Map your keepers against a checklist for the season (see the seasonal checklists). The gaps — not the wants — are your shopping list. Aim to fill gaps, not to hit a number.
4. Buy gaps with cost-per-wear math
Divide price by estimated wears per year times years of life. A $150 blazer worn 60 times a year for three years costs about 83 cents per wear; a $50 trendy top worn four times costs $12.50. The "expensive" piece is usually the cheaper one.
5. Maintain the one-in-one-out rule
A capsule only stays a capsule if new pieces replace old ones. When something wears out or stops fitting your palette, replace that slot deliberately instead of accumulating.
Common mistakes
The biggest is purging everything and rebuying at once — expensive and unnecessary. Build around what you own. Second is copying someone else's list piece-for-piece; a capsule must match your life and climate. Third is ignoring fit: a capsule's small size means every piece is visible, so tailoring pays off more here than in a big closet.