Have a personal flashlight. This may be useful for answering the call of nature in the middle of the night. Carry extra batteries for your flashlight and for your digital camera and for your GPS device. Lithium type batteries provide substantially extended life. If you carry a GPS, learn how to use it before leaving on your trip. You may carry a roll of toilet paper with you and/or in your saddle bags. You may want to have a second pair of comfortable shoes for wearing around camp. Consider taking a pair of nail clippers with you.