[somedude11]

Key management is a burden in every cryptosystem. I'm using KeePass and can recommend it, it works well.

[wglb]

Would you know if it failed?

[somedude11]

If it would "fail" and there would be no consequences so I could't tell if it failed or not - would it make a difference?

[wglb]

If the failure were discovered by you a year later, realizing that all you thought was protected was in an adversary's hands.

I'm suggesting that "seems fine so far" is not effective at evaluating solidity of cryptographical usage.