Update: This particular model is sold out, but TOPGREENER has one on sale for $19.
These days, you probably charge as many things over USB as you do over standard AC outlets, so it only makes sense to add some semi-permanent USB ports to your home.
Today on Amazon, you can get highly-rated duplex receptacles with a pair of USB ports for $18 each. These have proven very popular with readers in the past, even at higher prices, so be sure to secure a few before Amazon sells out.