yrs ago i detailed a car for a guy.he left a 100 dollar bill,under 1 of the floor mats,i guess to see if i vacuumed there.he came to pick up the vehicle,looked it over,and then asked for the bill,back. well i said that any money found in vehicles was mine. he wasnt sure about that. so after some talking,we split it.not bad,plus i got the cash for the detail. never found any more money in his vehicles. just some thing to think about.it pays to ck the sun visors also,foun out the same way.