Managing other people is hard, but even harder to manage yourself and your time.
How much working time do you spend on sites like
http://twitter.com ,
http://facebook.com ,
vkontakte.ru/ , etc.? 10 minutes in the morning, a bit after lunch, several times during the day, and then bam - 2 hours.
It is in order to limit the useless pastime and created extensions for Chrome
Stay Focusd .
The extension has a large number of settings, the most important of them are:
- editing a list of distracting sites
- editing the amount of time allowed on sites
- edit working hours in which the application blocks access
As soon as the limit on the sites is reached (for example, I have 30 minutes a day), you will be asked to stop fooling around and go to work:

Naturally, the application can be turned off, open another browser, etc., but this is already a conscious choice and clearly protected from the automatic opening of the sites for “downcast”.