Here are some ideas we've spotted that you might be able to borrow for your own interior doors in your home to add a few punches of unexpected personality:
Fun vintage department store doors In Harper and Caleb's Sophisticated Southern Gem, they replaced some interior doors with the thrift store find of the century, adding a unique and functional detail to their home.
Modern and sliding, barn door-like There's something very architectural and simple about modern sliding doors with industrial and noticeable hardware, like in The Shepherds' Sunny & Simple Remodel.
Corrugated metal and sliding modern Another sliding door we liked was from the small but inspiring apartment in Dave's Tiny Urban Austin Studio
Painted with art You don't have to replace your doors with anything new or vintage; you can apply some fun wall art over the doors themselves, like with downstairs bathroom of Elizabeth's Colorful and Adventurous House
Newer additions You might be surprised to know just how many different options there are out there for interior doors, and it's worth doing some research if you're in the market before you settle for the standard. Love what we see in Cody & Kamie's North Beach Hideaway
Decor before the door You don't even have to go so far as doing anything permanent to an interior door, choosing rather to hang something in front of it, like a textile from travel we spotted in Michael's Masculine & Modern Open Studio.
Vintage doors with a twist If you're lucky enough to have access to vintage doors, they're cool enough in themselves, but can be made even cooler with a bold modern detail, like painting the inside edges a bright modern color. Erin's Warm & Wood-Wrapped Austin Bungalow's doors are a great example.
Images -- 1-7: Adrienne Breaux; 8: Alysha Findley; 9, 10 Adrienne Breaux