A simple solution to this, if your using an iOS or OS X device, is to use the network link conditioner.

Using this tool, you can decrease the bandwidth going into your computer, increase the number of packets being dropped, and increase the delays while doing DNS lookups. The effect of this is you may bring your network speed down enough that your mind can keep up with the torrent of things trying to distract it. By imposing on yourself the network connectivity of 10 years ago, you may regain the focus you had back then as well. The difference is very noticeable, you'll realize right away that your doing something unessential when you're waiting +10 seconds for it to download.

Food for thought.