A lover of Scandinavian simplicity and a maximalist walk into an apartment. What happens next? Well, if they’re brand-new roommates, some tests of patience and understanding may lie ahead. Whether you’re cohabitating out of choice or necessity, sharing a space can be tricky—especially when you have wildly different tastes. The situation is fraught with challenges, and feelings often get hurt. To help, we’ve asked friends and coworkers, who survived their own roommate situations, for tips on how to make it work. Read on for all the do’s and don’ts to keep cohabiting friendly and conflict-free!