I understand that most of the time, .blend files will and should be under 30mb, and can be shared easily on questions, using blend-exchange or pasteall.
Sometimes, though, and it's happened to me only twice, files will be over 30mb (the pasteall and blend-exchange limit). Even if you strip it of all sorts of things to make it lighter...
It could be a scene with complex animations, many objects constrained together, or simply a scene where you don't run into the problem anymore when you delete some elements to make it lighter.
In these situations, what file-sharing website should we use?