What do you search for in the Gallery?

sometimes I download lots, but always end up re doing them. I have my game set to fill empty houses, but I also like to do this myself. I send a sim to an empty house and do download from gallery. then I go visit, these sims live in houses my poor sims cant afford. lol but I like to see my own expensive houses lived in, with a few things my sims can't yet afford, like a nice big telly. Then I get curious and go play the family I just downloaded.