Ultimate Guide to Laundry: How Often You Should Wash Everything

Bras: 3–4 wears (allow them to rest between wears to preserve elasticity)

Pajamas: 3–4 wears (especially if you shower before bed)

Slacks, skirts, and dresses: 3–4 wears

The Great Jeans Debate

Most experts agree: wash jeans every 4–5 wears.
Washing denim too often breaks down the fabric, especially if they contain stretch material like elastane. Preserve your favorite jeans by washing them only when necessary.