Under (one's) roof phrase
To live at someone's home.
I really enjoy living under my grandparents' roof.
The cost to maintain this place is pretty high. So, if you want to be under my roof, you'll have to earn it.
Try to avoid to change something because doing something else could make things worse
If you find somewhere to hang up your hat, you find a place to reside.
Used to say that you settle into a place or lodging and make it one's home.
If a person "eats someone's salt", he or she stays at someone's house.
1. To start a business
2. To stay in a place longer than expected, especially in an unwanted way
people often do irrational or foolish things when they are in love.
I and my boyfriend have decided to get married in the summer. I don't think that's wise, since we won't have enough money saved by then to set up house. But then, one cannot love and be wise.