Watch for these. "Oh, it's fine, just wash it like normal." That's not an answer—that's a brush-off. "We don't really track shrinkage" means they haven't tested, and you're the guinea pig. "Color might vary a bit" without a tolerance—that's a gamble you don't want.

Also be wary of anyone who tells you to dry clean a cotton tee. That's overkill and costs your customers money. You want simple, honest care: cold wash, hang dry, or low heat. If they push dry cleaning, they're either clueless or trying to upsell.