Any tips to not get riled up by my friend?

Me and my friend (f) are going on a trip together for a week. We are really good friends and have been for ages (7+ years). We clash occasionally and she has a very strong personality. I love her to pieces obviously but I'm worried we're going to fight. We're the only friend each other has on the trip and I really don't want to argue. Does anyone have any tips? Like how to chill around her or be civil?