You only get 4 weeks? I have 4 weeks of vacation plus 7 floating holidays that can be used anytime on top of the normal holidays with a normal 40 hour work week. That is basically 5.4 weeks of vacation. In 14 more years, I will get an additional week of vacation. Planning projects and handoffs properly does not cut into productivity. I won't cancel a vacation due to a project hicup, those can be handled by the handoff person. The problem with all of the people not taking their vacations, nor companies giving enough is that a lot of people get caught up in the "time" they work and not the "productivity" they work. I know a few people over my career that could generate tons of busy work that did not accomplish one thing. They could produce a pretty project folder with tons of papers, but could not produce the engineering installation document and equipment orders for the project.