When I mixed car paint for a motor factor in the 1970s we kept a large aluminium washing up bowl of cheap thinners handy for washing our hands in.
What it did to our hands, and what H&S would think today about a couple of gallons of cellulose thinner sitting there heaven only knows.
After a week or so the more volatile part of the thinners would have gone and it wouldn't clean as well – so we tipped in another gallon to refresh it …….. !