I did this as well and it definitely helped. For Stack Overflow I've also removed the left sidebar entirely and upped the minimum width of the main content (so

I did this as well and it definitely helped. For Stack Overflow I've also removed the left sidebar entirely and upped the minimum width of the main content (so code doesn't get cut off nearly as much). Another helpful one was removing the "next page" links on Reddit (I use the classic version). That way I can check on some things I'm interested in, but not get carried away. I'm considering doing the same for Hacker News.