Construction continues even when it’s cold, so the manufacturer has created warming devices for temperature-sensitive products such as caulk and paint. The warmers include wraps for 1-gallon cans and 2- and 5-gallon pails. Each uses a flexible heat-reflecting shield encased in a heavy-duty nylon canvas wrapper and plugs into a regular outlet. Cost: $85. Reasor Cos. 866-927-6757.