Forget cutting your sticks one piece at a time; with a little bit of help from an A-daptor kit*, you can turn your Skil or Bosch 7-1/4″ worm drive saw into a 10-1/4″ saw that can take a big 3-3/4″ bite out of your stock — enough to gang cut a mess of 2x4s.
Big Foot Tools sells kits that fit Skil Type 14,15,16, and 17 saws, the Bosch 1677M, and the Mag Type 1. Their adapter kit ships complete with a 10-1/4″, 36-tooth carbide blade. Using the supplied instructions it supposedly only takes 15-30 minutes to convert your saw.
You’ll pay about $300 for the kit.
*(Thanks to the Man in Black for this great song)