For example, only about 1% of workers have an unlimited vacation day policy. But research has shown that those who do often take fewer days off , out of uncertainty about how the policy works, fear of being seen as abusing the policy, or a lack of seeing management do the same . Whether you have a lot or very little time off, requesting as early as possible will make it easier for you to get the time you want, plan for it, and commit to using it.