Here is a tool that helps you climb trees in a safe fashion. The Guide Gear 20′ Tree Ladder provides you with better stability and footing to help prevent any slip-ups. The straps keep the stand away from the tree, so you can get a good foot-hold. The tree ladder has a 3/4″ tube steel construction. It fits trees 9″ to 20″ in diameter. The steps are 8″ wide.
The Guide Gear 20′ Tree Ladder has a portable design and 300-lb weight capacity. Costs under $50 at this time.