How to check if IEnumerable is null or empty?

I love string.IsNullOrEmpty method. I'd love to have something that would allow the same functionality for IEnumerable. Is there such? Maybe some collection helper class? The reason I am asking is that in if statements the code looks cluttered if the patter is (mylist != null && mylist.Any()). It would be much cleaner to have Foo.IsAny(myList).

This post doesn't give that answer: IEnumerable is empty?.