Not Yet is a Chrome extension that makes distracting sites wait.
Add the sites that pull you in, set a short countdown (or a schedule like 9–6), and let the pause do the work. For extra friction, Uglify turns selected sites grayscale and slightly blurry. It's not a hard blocker — you can always go back.
Built for people who've tried blockers and still end up on the same sites. No account, no analytics, everything local. Free on the Chrome Web Store.