I'll start.

Two weeks ago I started using Trakt. It's a website/app designed to keep track of shows and movies you've watched, and gives you a list of which episode is available to watch next which updates as new episodes are released.

A lot of other similar websites I tried don't have everything cataloged (some done have anime, while sites like Letterboxd only do movies).

Recommendations function is pretty horrible though and they lock basic filtering functionality behind a subscription, but it's still pretty good for what I need it for.

It also gives you stats for your total watch time. Which is now 192 days.. Not including reruns.. So maybe it's double that. I don't know whether to be disappointed in myself or proud.