Different people have different needs; mine are around managing email, contacts and appointments. I also want a portable solution that doesn't leave crumbs of my activities everywhere (I carry everything I need on a thumb drive, and run my programs from it as much as possible), and I've never been able to reliably run Outlook from a thumb drive. Cloud solutions don't work for me because I want access to my data anywhere I go (including when sailing to remote places without Internet or cell coverage).

Which one(s) of these solutions meet my requirements? I'll find out...