I always try to use my days, though because of rollover I usually will keep a bank to increase next years. We can roll over 5 days of vacation and 5 of PTO, and any additional PTO goes in an extended illness bank. A coworker told me once to bank as many as possible in case I want to have a baby and can use it for additional maternity leave. (Which ummm personal but also good advice). On Thursday I put in for several additional PTO days in June and my official time off request for my two week vacation in July! This will be the longest I’ve been away (other than the holidays) in a while and I’m so pumped!