Used coffee grounds are popularly associated to gardening due to the nutrients available in them, such as nitrogen, phosphorus, potassium, calcium and magnesium.
However, they can also be used in personal care. Personally, I would use coffee grounds as an exfoliant. If I happen to wash my hands in a sink near some coffee maker, then I'd use the grounds to scrub my hands. The effect is pleasant, as the skin feels softer.
Some home-made soaps recipes can be tweaked incorporating coffee grounds for that added scrubbing action. Some also thrown in coffee butter to add a fresh scent of coffee as well.
I have given away used coffee grounds to friends and family and they all love the things they could do with it.
:wink: