DIGITAL BICYCLE SCALE - $19

Save compare to the $60 Parktool scale:
 http://providencebicycle.com/product/park-tool-digital-scale-40807-1.htm

This scale weights either metric (grams/kilograms) and standard (ounces/pounds). This scale is extremely accurate from a broad range, from 10 grams (0.022 pound) to 45 kilograms (99.2 pounds).