[dope9967]

Google Keep is pretty awesome for notes. Has a good search, supports tagging, can pin, manually order notes, create calendar reminders from them, attach images, colors. Supports plain text notes and checklists. Also, there's not only a web app but desktop and phone ones too.

[loriverkutya]

And it’s all gone, when they shut it down.

[dope9967]

True. There is an export option for notes in Google Keep, and I don't think they will just shut the service down instantly without warning. I guess there's no silver bullets, every option sucks in a way. You go oldschool with a text document or directory structure, you loose out on usability, if you use any of the services there's a risk of them being shutdown, or you host some service yourself and take on costs of doing so.