The majority of my customers pay on time either when I clean or put it under a flower pot ect some bank transfer but am fast getting fed up of following up on customers that forget to pay or haven't been to the bank yet, Id like to drop the slow payers but am not earning enough to do that yet although i will drop them asap. how do you collect money? am I making life difficult for myself, whats the fastest way you find to get the clean window money in your pocket? anyone used izettle or similar is it any good? same goes for direct debit?