Seat sticks/shooting sticks are great for when you have a long day out at an event or just going for a long walk. In fact, there are many times you might wish to have one. Simply stick into the ground (if have you a spiked version) and the seat will either fold out or already be there ready for you!
Please note that seat sticks come in various sizes to match your height and should only be used as a prop rather than a chair. Having a non-spike legged version allows you to place the seat up, on many hard surfaces.