Get a handy illuminated luggage scale for $7

When I need to weigh luggage, I use a health scale. First I stand on the scale holding the piece of luggage, then I stand on the scale without holding the luggage. By employing an ancient sorcerer's spell, I can use these two numbers to magically calculate the weight of the luggage. With this handy little luggage scale, though, I no longer have to resort to witchcraft. Except I did use the incantation "47KSC7YA" to melt $3 of the price of the scale on Amazon, and got it for just $7. That's the last time I'll use magick, I promise.