I was round looking at a women's solar panels that she had messages me about. She only has 9 but it turns out they're going to be un-reachable. Anyway we got talking and she happens to be a financial coach. She was offering me loads of tips and one was a great idea. For large twice yearly jobs such as solar panels on domestic properties, she suggested taking payments from customers on a monthly basis rather than two lump sums when the job is finished. Say each clean is worth £60, 2 cleans a year would be £120 so this customer would pay you £10 per month and in return you'd clean their panels twice a year. This would mean you'd have a constant cash flow coming in and it might be more appealing to the customer. Wouldn't work with windows as they're monthly anyway. Just wondering if Solar Steve has maybe thought of this as he's obviously built up a significant client base with regards to solar panels.