I wouldn't recommend the affair one but, I'm replying to this because regarding the last one:

  put "127.0.0.1 news.ycombinator.com" in your "/etc/hosts"

You don't even need to do that if you don't want to completely ban yourself from HN (especially as this site runs on several domains) you can just edit the "noprocast" to "yes" and edit the maxvisit: and minaway: times from the standard 20minutes and 180minutes to help you to be more productive and stop procrastinating.