I find it works well to use an anonymous transit for work .....if down in London or even Manchester ...
Bathroom refits (new suite, floor /wall tiled,Power shower over bath/or shower enc) +two weeks +taxis at night around town/pubs +materials brought from oop North+booked up til Oct + me an my mucker +digs are £500 =YOU CHARGE
£7,500 a job ..
3k each ...a job taxman its £5oo a week ..gets his,,,he is well happy
(had an audit 2 yrs ago an had chummy on site ,we were in a camper van then , we made him feel sorry for us very frugal living ,we were very pitiful (no stringfellows that week )baked beans heated with rothenburger an we chirped about how "Tebbit was right, on your Bike etc ", he left us an accepted our returns lol
points on working down London
always do a good job an bend over backwards to do a neat BOSS job ,treat their house like your working at your Grans