A solar powered fan for your attic is a good choice if switching completely to solar power is not feasible. The fan will have a temperature sensitive gauge and switch itself on when necessary. This will remove heat and lower the cost of cooling. It's also solar powered, so you don't have to pay to power it.
DIY – Do it yourself solar elipse viewing glasses. NOTE: This is NOT tinfoil. Please make sure you are using a proper solar viewing film from an astronomy store.
You can dip your toes in the solar energy waters by simply installing a solar powered whole house fan. A solar powered attic fan turns on automatically when it becomes too warm. You'll reduce the cost of cooling your home by having this solar-powered attic fan remove hot air from your home. Additionally, as it is solar powered, your power bill will go down, not up.
Do your best to reduce your energy consumption before investing in solar energy. Your solar energy system will be more affordable if you can live with a reasonable quantity of energy. Start by improving your insulation, make an effort to turn off appliances and replace old appliances with energy-efficient ones.