Some days it takes more effort than others to make it through a full 8 hours (or sometimes more) at the office. Here’s a great list of ways to help you stay alert, awake, and productive from Work Awesome: How to Stay Alert.
My personal tip: get moving! Periodically getting up from your chair and getting the blood flowing can do wonders for your energy levels and productivity.
What helps you keep going through a particularly difficult work day?