If you can’t be bothered to schlep to the gym during the winter, you can still keep in shape at home with this cleverly designed PowerBlock dumbbell set. Each dumbbell adjusts from 3 to 24 pounds in 3-pound increments with just the flick of a selector pin, so it’s basically like a complete weight rack that could almost fit into a shoebox.

Today’s $106 price tag is within a few bucks of an all-time lwo, so you can really flex those savings muscles.