Yeah, I tried this for a while, along with putting Chrome in increasingly obscure places on my hard drive. After these failed, I came upon the flash drive idea, which has the feature that it involves physical activity and therefore can't be done mindlessly. If you need to, you can throw it across the room.
You could just physically unplug your broadband modem while working then, as long as you're the only person using it.
Previous Open Thread: http://lesswrong.com/r/discussion/lw/k9x/open_thread_may_26_june_1_2014/
(oops, we missed a day!)
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should start on Monday, and end on Sunday.
4. Open Threads should be posted in Discussion, and not Main.