About the HN and reddit problem, I found it helpful to add this to my /etc/hosts file to prevent the timesuck:
127.0.0.1 reddit.com www.reddit.com news.ycombinator.com
Of course I comment it out during weekends, and permitted "play time".
Of course I comment it out during weekends, and permitted "play time".
I am definitely going to try this. And will also add facebook.com and techcrunch.com to the list!!
Does "0 * /25 * * *" work?