I have personally used Sweeps. My company, PRA Health Sciences Inc. is having a significant office move on Friday January 16th. 128 offices or workstations will be vacated/moving. I need a small team to come and clean the vacated offices so new people will move into clean offices the following Monday. As is the case with people leaving apartments, some will be very clean and need little more than a touch up, others will need a deeper clean. Some people may not have properly packed up their offices. If this is the case, I will need a Sweeper to do this for me so the office can be cleaned and ready to be moved.