• Don't buy a 'preshrunk' tee and assume it's shrink-proof—it still shrinks if you use hot water or the dryer.
• Skip 'specialty' detergents unless they're for a specific issue like odor or bleach stains.
• Don't hang tees by the shoulders—use a folding method or a hangar with clips on the hem.

These traps are common, but easy to avoid once you know they exist.