I've talked a lot of talk about 20-Mile Marching over the years, but I finally created an actual video about it. Check it out!
About a year ago I wrote an article about 20-Mile Marching. It's got the elements that are in the video, with some more details on the matter:
Lastly, if ya like posters, there's a poster that you can buy and hang on your wall:
Work smart and rest well!