Comment by pc86

When I was in my early 20s I had a few friends who were obsessed with traveling and would do stuff like this to maximize long blocks of time off, then they'd pick where to go because now they have 9 days instead of 4, and decide where to go backed on what time of year they had that longer block.

If your trying to maximize "contiguous days off" and you truly don't care when it is, a tool like this is super helpful.