Budgeting for First Year/First Kid in College

Starting to plan out our budget for next year. Our oldest will most likely be heading off to college (where is still TBD). For those of you who have entered or experienced that phase of life, how did your expenses change for the time that your kid was in college? Thinking of things that are in addition to tuition/room and board fees. He’ll be working over the summer, so he will be contributing to what he can but I just want to ballpark things to avoid big surprises.