Considering that your refrigerator is among the most essential and expensive, it's a prime target for proper care—and the best way to keep it in tip-top shape is to clean the coils. Really?

One of the items found on the identification tag that is attached to each coil when it is received from the steel mill. The coil number is a unique number that identifies each coil from each batch of ...

But it isn’t as convenient as having one with a lithium-ion battery. These inexpensive mosquito coils work as well as our other picks, but they’re not as portable, versatile, or durable.