You could try this:

Create a simple text file of all your passwords and the files or folders or things they open.

Download this software:

Meo

Encrypt the password file with Meo - using just one password to encrypt and decrypt the passsword file.

Destroy the text file.

When you need a password, decrypt the meo file, use the relevant password, and then destroy the decrypted text file again.

I've just tested it - it works.