You spent hours choosing the perfect paint color and covered every wall with care. But years later, a touch-up is needed—and you can’t remember if the shade of green was Phantom Mist or Dinner Mint.

Q: I read your recent article on paint-prep and feel confident enough to do the job myself (I think). What advice do you have on ensuring I get the right colors the first time around, so I don’t ...

We’ve all been there: We decide to paint a room, and weeks later our walls are still a crazy quilt of paint swatches. We’ve flipped through rooms on Houzz and Pinterest, and virtually painted the room ...