If space is tight, consider using a panel saw to cut large sheets down to smaller sizes instead of setting up to handle them full size. When building overhead shelves, consider that a comfortable vertical reach is from 77-in. to 88-in. Normal horizontal reach ranges from about 15 1/2-in. to 20-in.
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.