We are going to visit DH's parents when my LO will be around five months old. I'm flying alone with her and really don't want to bring the infant carseat. They offered to buy a carseat but asked me to pick one out. Since we only go there 3-4 times a year, I am thinking getting a convertible seat makes the most sense. Does anyone have any suggestions for easy, safe and fairly inexpensive options? I was thinking about getting a britax for us eventually, but I'd rather them not spend a ton of many since the seat will only be used about three weeks a year. Thank you!