We gave interior designers Darren Jett, Noz Nozawa, and Xavier Donnelly a photo of the same empty bedroom for a young professional—and then asked each of them to renovate it in their particular style.

First, Sherri removed the laundry area's "ugly" peel-and-stick floor tiles, which had been in the house since 1985. "I used ...

These easy tips dial up the personality without breaking the bank.