I use Carfax. You can create an account and self-report services. Some shops will automatically report to Carfax on your behalf, but most don’t, and I certainly have to enter my own DIY work manually.

This came in clutch when I sold my last car private party because I was able to print out the Carfax for my vehicle and it included my self-reported records as well, the buyer loved it.

Paranoia, mostly 😅

Pretty big “if” since I’m the only one who knows the long password, I rotate it often, and I hold the keys to encrypt everything. You’re right it’s a single point of fail but a LOT would have to go wrong for it to fail.

Edit: plus 1P supports physical 2FAs to get into the vault itself, if that helps

I really like 1Password as both my PW manager and OTP generator. PWs and OTPs get synced across devices so I never worry about losing my phone and getting locked out of any 2FA sites. On iOS as well as desktop, 1Password can auto-fill passwords and OTP codes. Highly recommend.