Ha ha, you actually made me Laugh out loud.
I find i just do it. I have got a full valet down to about 1 1/2 hours. Mini's come up really well with a good clean. I try to do 2 at a time. i just stick to a structure when cleaning, I do everything the same way each time and stick to it, otherwise i get waylaid and sidetracked. i HATE cleaning cars too, so the faster its done, the better. usually first job if theres anything to do so its done and out the way for the day.
I actually don't get that many enquiries ( Last week was 14 and did 8 deals ) so onyl a few a day to deal with and most of them want to come at the weekend so sat and sun are my selling days, try to make sure everything looks the nuts on a Friday before I go home.
I get to work at 8.30 am and sometimes don't leave until 6.30/7 so i guess its just long hours. I usually leave a load of proxy bids the night before and then see what i end up with the following day, unless i get time to sit and watch the auction, however thats when its tempting to always go another few £££ over your proxy bid.
I only have 8 cars in stock currently and they're all clean, so its only a case of cleaning as you go when you buy them, but I need 7/8 cars otherwise its going to be a very quiet few weeks!