It’s interesting that when you are productive you have more energy to be even more productive or so it seems. There are a lot of factors that go into having a productive day such as rest, organization and hard work.
When its a slow day things drag along and it drives one crazy. There is something to building on ones success and it makes it easier to get things done. However there are days where you have to just keep on going no matter what. I do enjoy the easy days but the challenging days build character and help you endure long-term.