Ive spoke to you before @Karl about how i do it, Mine is a chinese that pays cash each night, had my finger in there for quite a number of years now and drop in more when im saving for something and less when im not, although i use a 1ltr aygo and not the bus usually (do have to use it occasionally if wife has car and you see tips fly away from you when you pull up in a camper and they realise you have two cars . Currently 2 nights a week sees me with about £80 a week. At times ive been there 5 nights and taken £200 a week. Mine you get paid by the delivery so it depends on what night (weekends busier obviously) and time of year (hot summer nights alot quieter than cold wet ones)
Working with numbers and spreadsheets all day requires massive amounts of attention, and I can't do that half asleep, so need to ensure my sleep routine is not disturbed as much as possible.
If I could viably deliver with the Elgrand, I would... but a non-LPG converted 3.5 V6 2 tonne shed on wheels is not going to be economical to deliver. And I have fuck all capital to go and bu/tax/insure a second vehicle for a delivery job for 6 months.