I've seen a lot of how-to use PGP writeups, but I haven't found a single good one that helps both windows and mac users (or linux). And by good, I mean something that walks the user through the process of securely creating a key, protecting their private key, explaining the difference between a public key and a private key, explaining how to PGP sign an email, PGP encrypt an email properly, encrypt files, decrypt files, upload public keys to a key server (or why you shouldn't), how to decrypt an email... and anything else you need to know to not make any mistakes that would compromise yourself. PGP is great but there are a lot of ways you can make a mistake.

I dream of a day when secure communications is simple and usable by all.