For example, use a password manager, use 2FA.
Taking the time to refuse all the cookies, every time I visit a website.
Going through all of Google, Facebook and other services settings to disable every tracking possible, especially towards ads.
I can tell that ads are less and less relevant.
That’s actually a big one for me too. I have an extension running called “minimal consent” but it’s deprecated and never managed the more complicated dialogues. I also disable personalised ads on every platform (often defaults to enabled)
It’s sometimes annoying but all in all, I get the most random ads and i’m happy about it.
As a rule of thumb, if the cookie dialogue does that spinny “saving prefernces” loading screen for more than 10 seconds, the page probably wasn’t worth my click anyway and I close it.