interesting idea. seems equivalent to the trick of paying cash instead of by card as it makes you more conscious of what you spend. also, at the end of the day there is no trick b/c if you're so inclined you'll always find a loophole. so it all comes back to simply being aware of impulses and your ability to have control over them. knowing what time you actually spent so far is an important information. as with all dopaminergic activities (cocaine being an extreme one) you lose oversight of time - an hour can (especially in hindsight) feel like 5 minutes.
