+1 Also note that without some vacation you are slowly drained which leads to less productivity which leads to no contract renewal. Burnout is also a real risk

+1 Also note that without some vacation you are slowly drained which leads to less productivity which leads to no contract renewal. Burnout is also a real risk. I would use the vacation to perhaps find a 2nd customer even if for a few billable hours/month, just to start another business relationship...