The rules of pick-your-own farms:
Always call before you go. Nature is fickle, and different conditions can slow or speed up ripening.
Children are welcome. But don't let them trample rows, climb on machinery or trees or wander away unsupervised.
Pets are not welcome. (Yes. We're talking to you who take your dogs everywhere.)
Aim for mornings or evenings when the farms aren't so crowded and it's not the heat of the day. Regardless, still wear a hat and sunblock.
If this is your first time, ask for picking advice. With strawberries, don't pick those with white shoulders or green tips. They'll be ripe for someone who comes after you.
Bring containers for your fruit, unless the farm specifies that containers are provided. Flat baskets and boxes are excellent, because fruit won't be piled too deep. Pails and buckets are easy to carry.
Care for your fruit on the way home. Don't put fruits in the trunk of your car or leave them sitting in the car if it is sunny. Consider taking an insulated cooler to carry them home.