Pound some good beans with a rock in a hankerchief. Then boil them slowly with some water in any vessel. Add some cold water at the end to settle the grounds and enjoy.
The new instant coffee is handy for mornings with a time element like hunting when you just want to get moving.
In the northern canoe country like Ontario, some like to swing the coffee pot in a vertical plane to settle the grounds.
If you have average coffee or are trying to use the same stuff from yesterday, add some egg shells to neutralize the acid.
Two guys were visiting a ranch in North Dakota. It was about 0430 in the dark, when they made a cup of instant coffee in styrofaom cups with powdered milk which was the local custom. One of the ranch hands turns to the guys and says "That mister, is a good cup of coffee."