Eating the frog means just do it, otherwise, the frog will eat you meaning that you'll end up procrastinating it the whole day. Once that one task is done, the rest of the day will be an easier ride and you will get both momentum and a sense of accomplishment at the beginning of your day.

The ability to concentrate single-mindedly on your most important task, to do it well, and to finish it completely, is the key to key to attaining success at what you do.