When it comes to paper wallets, I always like sharing my method on how I do it:
take all your private keys, and encrypt them using 7-zip.

Just make sure you choose the encryption method in the dialog to be AES-256 (which not even the FBI and CIA can crack), and not ZipCrypto (which can be cracked in 15 minutes).

Then as long as you used a strong password you'll never forget, you can have several copies stashed everywhere (on your computer, in your email, I personally have a copy on both my yahoo and my gmail, also on a flashdrive you always carry, I keep one copy in a flashdrive at my parents' house, and on my work computer, etc).

And you can still keep adding coins to these paper wallets as long as you keep a copy of the public address(es).

Taking it one step further, I use Google Inactive Account Manager as a "dead man's switch", so that my loved ones can access my paper wallets in case something happens to me. It has instructions how to access my paper wallets, telling them the password to a 7-zip encrypted archive, stored on a flash drive hidden in the house. And I also include a basic guide on how to cash out the crypto. I encrypt this 7-zip with a DIFFERENT password, so even if they hack the Google account with this info, it acts like 2FA, they also need access to the flash drive in my house. The password in the deadman switch won't work for the 7-zip files on my email, work computer, etc., only I have the password to those files.