I use a product call Invisible Trail Glow . Its a spray that is invisible to everyone even with a flashlight. You use a UV flashlight and it glows super bright. You can be extremely stealth . The stuff lasts for years. I even use it in a new area when I want to go in with a portable because it smells like vanilla. No tacks to remove and your spot is a secret. Not many people know about it. The website is invisibletrailglow.com Hope this helps. Good luck.