re: Technology at home - do you trust it?

I go here every Sunday evening and completely eliminate every trace of my online activity from Google:

My Google Activity

If you've never done this, it will show you an amazing history going back to the beginnings of your online life.

Google, of course, doesn't recommend deleting this because they use it "to tailer content to suit your interests and lifestyle".

When you do this, the ads you get are completely random crap because Google loses all ability to target you off of your history. Worth checking out.