I use Scrivener, and I just had my best day total so far, but I've got to tell you all, that sucker hurts when you hit that reset. Ouch. Like falling off a tower of your own building, knowing that you're going to have to build another tower of the same height or better to make yourself satisfied.
That's how I feel when I update my wordcount after midnight. I do the majority of my writing (and my best writing) late at night and sometimes that means updating just before and just after midnight. I wrote over 3000 words today and started to catch up and then midnight hits and whoops nevermind looks like you're another 1667 words behind.
Ah, but you 'after midnight' writers make the daily word graph annoying for early-morning writers. I don't know how many times I write a thousand or two before work, only to still be behind some late-night writer.
Then there are those of us who have to work during normal hours and wonder where the heck do you people find all this time for writing. I only have about 2 or 3 hours a night to write; the little extra is typically done on my smart phone.