Take your favorite two power stones. It could be red or yellow Tiger Eye, and any other stones you feel are your personal power stones. Put each of them in your left and right pants pocket. Now, go do your stuff what ever it is, and if you at any point feel insecure, helpless or attacked simply affirm to your self: I can handle this!
This article about chakra stones discuss the importance of chakra stones for healing. All Crystal Healing practices include chakra stones as this they are the key point in a healing session.