Memorize my password and use 2FAS for MFA for Proton Pass.

Alternatives: Discord DM sound, Microsoft Teams notification sound

You may find this project useful. https://github.com/justin025/onthespot

Or https://github.com/schlagmichdoch/PairDrop if you don’t want to support a project bought out by LimeWire

I used https://tweetdelete.net/ a few years back. I had to pay for a premium account for a month to do it but it was only a few bucks. I’m not sure what “expensive” would be in your books.