Wear safety glasses when operating any power tool. Wear safety glasses when striking any object with a hammer or other striking tool. Do not wear loose clothing around moving machinery or power tools. Make sure all ladders and scaffolding are placed securely and on a firm, stable surface. Work at a calm and reasonable pace.
Many accidents are the result of taking short-cuts or attempting to work too fast.
Do not attempt to repair electrical equipment unless you are certain of your abilities. Always disconnect power when making electrical repairs. Always verify that power is off by checking with a voltage tester, but first, verify that the voltage tester is working properly.