£45-50 ?
For real?
If its mcdonalds i presume its subbing but even if not it will need to be dirt cheap
I would do it on time, and price rock bottom , ie one hour work£20 max
as its 3 times a week your looking at 240 a month in your bank so its all good
And you can probably get in there early and late
Mcd's is hardly mustard work, but if you have a few it could be ok.. plus at 3 times a week, youd be doing one good clean and 2 spot cleans