The Spartan Workout: Part 33 Lunges getting too easy? Try it with a sandbag. Or a sandwich, if you’re lazy. Maxim Staff 2 Apr 17, 2013 Facebook Share on Facebook Twitter Share on Twitter Pinterest Share on Pinterest Lunges getting too easy? Try it with a sandbag. Or a sandwich, if you’re lazy. Share: Facebook Share on Facebook Twitter Share on Twitter Pinterest Share on Pinterest Tags: spartan sports upkeep video