In the wooded forests near me a practice I've seen is to lean a small stick (maybe 1 or 2 feet long) against a live or standing tree. The stick is natural to the area so it blends in. It will eventually fall over, or wroughtrot if you do not remove it. You might not even notice the stick if you are not looking for it.
Another method I use more often is to move a dead and down tree branch already on the ground. Move it to point in the direction you want to travel.
Whatever you do, don't do totoo many of them. These are just tintshints and reminders that you are headed the right way. If you need a continuescontinuous reminder of your route, GPS is a better solution.