Spending the night

For all of you in a relationship but not living together.. How do you go about spending the night? Like how often ? And do you all see each other everyday? My boyfriend and I have been together for 3 months. So it's fairly new.. Most of my serious relationships we have lived together or just spent the night almost every night .. I just want a good balance.. Although I would love to spend the night of him with me every night.. I don't think it's healthy.. And I know it's hard to not fall into the habit too soon..