I have 10 paid vacation days a year plus paid stats. I need to advise them one month in advance when I close for vacations or whatever. If I need to close for any other reason without 1 month notice I don't get paid. If they take any vacations or whatever reason they they do no come they still need to pay. They pay on the first of every month for the entire month. I send them an invoice for the month 2 weeks in advance. It's workout well for me.