If you are on a Mac (like the OP), you might consider using FileVault. Then, use a very secure master password, write it down and keep it somewhere very, very,

If you are on a Mac (like the OP), you might consider using FileVault. Then, use a very secure master password, write it down and keep it somewhere very, very, very safe. In the event you ever forget your password, you can unlock the encrypted volume with the master password. I don't know if Truecrypt has a system like this now; they didn't when I last used them (about...what...5 years ago? O.o ).