@clock Not often at all. I mostly use it for calendar and contacts really. Sometimes open a share for other people to upload files that I want them to send to me. If I wanna share a file it's easier to copy it to a temp directory one of my web servers usually.

@clock never. pretty much for my own backup only.

@clock Family members, monthly. Outside people, rarely. I do it for sharing private keypairs multi-developer projects.

@clock Twice a month.