Try running window cleaning as a business,Even if you dont have a business account, have a sepurate account, put all the money into it and pay yourself a wage each week. Add on £50 for personal stuff. After a few weeks you will see the account gr ow, (surely no-one is daft enough to pay themselves all of their income). Then you ill have a constant wage.If you find you are paying yourself more than you earn, pay youself less or put your prices up.