Right after the dust settles from a home renovation, a whole new kind of mess shows up — paint spatter, grout haze, faint chemical smells. Good news: one bottle of plain white vinegar and a box of baking soda can handle most of it, cheaply and without harsh chemicals. It’s not a match for every surface, though, so here are 9 smart cleaning and deep-clean tricks to use after a fresh interior design update. And as a bonus, we’ve got some surprising stories from people who decided to just start cleaning — and ended up with results they never saw coming.