I would have trouble with the criteria for making a hash mark. Is it like "ok, here I go", start a timer, work for an hour, then mark the sheet? What if you get

I would have trouble with the criteria for making a hash mark. Is it like "ok, here I go", start a timer, work for an hour, then mark the sheet? What if you get interrupted, don't stay focused the whole time, or find yourself having started working without having started the timer? I have a possibly over-the-top solution to that problem that I just wrote about here: http://messymatters.com/tagtime http://messymatters.com/tagtime