In the past, one would have to get married before moving in with a man. Nowadays, moving in your boyfriend is a common trend. As a relationship progresses, depending on the level of commitment, the discussion about moving in together is bound to come up. By the time this conversation comes up, the two of you are probably spending so much time together, and are either at his or your place that it seems to make sense to move in together. The reasons seem justifiable; less commute, less money spent on rent, less money spent on shopping for two houses, and clothes will be easier to find in one house rather than split between two houses.