Think that coffee stain or oven gunk won't budge? Try these strategies for cleaning a dozen common messes, from crayon on the walls to candle wax on tables.
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For tea or coffee stains, squeeze half a lemon into the mug. Let it sit for 5 minutes, then add a spoonful of salt and scrub it around with a lemon wedge. It doubles your scrubbing power. The fruit's acid lifts the stain while the salt absorbs it.