A sharp pencil is essential for making accurate cuts. To keep the pencil point sharp, rub it back and forth a few times against a sanding sheet. This will give the pencil point a chisel shape which is excellent for marking.
During a power failure, a votive candle contained in glass can provide bright, continuous light for many hours and even days. A flashlight may only work for a few hours. The flame on a votive candle is also safe from drafts and sudden blasts of wind. Votive candle are widely available in grocery stores.