Pay tenant, deduct from rent or find someone else?

[Karen S.]

The front of my property and the laundry room always seems to have garbage accumulate. This is a fourplex so there is just a laundry room with a washer and dryer but the tenants seem to always leave their empty bottle laying around.

I was thinking of having one of the tenants, if they agree, to sweep the front on a weekly basis and also make sure the laundry room is clean for a $50 rent reduction. Is that a good idea? Other options would be to pay them $50/month or just find someone else altogether. Any advice?