Sure.

Step one, when things first start out, avoid spending time together. It’ll happen naturally, don’t try to force it or you’ll get sick of seeing one another.

Step two, designate what belongs to who. If it isn’t yours, don’t touch it without permission.

Step three, find a show or game that you both like and can watch/play together. If it’s a game, don’t make it a versus game or you’ll kill each other.

Step four, help out. Once you move in, it might not be your stuff, but you’re using it. Help with routine maintenance. Wash something, dust, vacuum.

Step five, cooperate. It’s all fun and games, and/or threats and jokes. But you’re in this together. If you get mad, if you yell, scream, whine, or cry before slamming that door, guess who you’re going to have to explain it to? Sometimes yelling has to happen, but always remain calm.

Come to think of it though, with Spike around, not sure how much of step four will actually matter. And if you’re a couple, not sure how much you can apply step one either.