i work 4 weekly in a month, ie week 1 starts the first Monday, so that will be Jan 5th, week 2, Monday 12th, week, 3 Monday 19th and week, 4 Monday 26th. so my days off are at the beginning of the month, In March they will be at the end of the month and i dont work to a fixed date, which some monthly cleaners do, i feel it gives a little more flexibility to move work across the weeks