Board Thread:Questions and Answers/@comment-20675445-20130919171428

Currently, each task's base value (eg., a normal difficulty, normal priority, new yellow task) is 1 GP. This will fluctuate somewhat. (For example if you are really neglecting 1 hour of Housework, getting around to it will be even more worth your while.) Still, this is a good starting point.

If your task is 1 hour of Project X, price 1 hour TV show at 5 GP to get 1 hour of rest for about 5 hours of work.

If your habit is 30m housework, you would price 15m web-surfing at 4 GP to get 15m rest for 2 hours work.

Experiment and adjust values to suit. 