Annual Passport to Fun! I love this card! It allows me to do many fun things. Like get into any of the 401 (and counting) national parks, monuments, etc. throughout the USA. All for just $80 a year. That is quite a bargain considering it costs $15-25 per park for a 7 day Pass.
I live just 5 miles from the West Entrance to Joshua Tree National Park so I have been using this Pass on a weekly basis to go hiking with friends. I also love venturing into the park for some Night Photography. And JTNP is known as a Rock Climbers paradise as well.
In the past year I have also used it to get into the Grand Canyon, Zion and Bryce Canyon National Parks.
Do you have an Annual Pass?