This document outlines the GSTD problem solving method and provides an example of applying it to address issues with student lockers at a public high school. The GSTD method involves three steps: Go-See to visit the site and identify key stakeholders; Think to define the problem, brainstorm improvements, and analyze feasible solutions; and Do to organize ideas and work on the selected solution. In the example, a team would Go-See the high school, Think by listing locker improvements and selecting cost-effective options, and then Do by organizing the ideas and redesigning the lockers.