UGH! You got bar soap as a gift, yuck. You like the smell but no way are you rubbing that on your body!
Well, theres a few things you can use it for and do with it, other then rub it on your Butt.
You can......
Stuck zipper rub it on the zipper
Put in a drawer or closet, keep it fresh smelling
Grate it up add water! BOOM! liquid soap
Use it under the seat in your car, keep it fresh smelling
Drop a bar in a truck that has linen in it, keep it fresh smelling
toss it in you not so nice gym bag, cause I'm sure that smells like Roses