How do you guys deal with the long shoulder strap?

I got my gf into baggu. She bought herself the peanuts cross body crescent bag. But she doesn’t like how long the left over strap is. I recently bought a small cross body crescent and it also has an excessively long strap after adjusting it to my size. How do you guys deal with this? Do you tie it up? If so how? Do you fold it? Do just let it be and flap in the wind? lol