Moving in together.

The only thing I would even bother suggesting (since every couple is really different as far as priorities) is considering the budget.

Resentment can build easily if one person is contributing more to the household when the other is not.

That's not to say that the one contributing less can't add to their contributions by helping out around the house. Like some have already said: it's insanely frustrating to come home and find the house a mess while someone is just laying around doing nothing - ESPECIALLY if you had a hard day.

It's true that love can really help in a relationship where you actually give a shit how much the other person feels. But, you know, you can fall out of love and you can get annoyed with a person's habits BEYOND "being in love."

You want to avoid resenting each other for whatever reason. You better hope your partner is pliable, willing to compromise, and able to contribute.

Jam it back in, in the dark.