< The Essentials Only Web 3 days challenge
Good plan! I've done similar, with the rules that I can only interact with services / companies for which I've already got a page bookmarked (for example, my bank).
As a result I'm now a very intentional user, and "casual browsing" is kept to a minimum. Note that you'll never fully eliminate it though, otherwise- how would you have found the pub?
Actually, the pub found me :) but, yes, you have a point