Nice guys finish last. It's a fact of life and a Green Day song. But even with the ubiquity of this old adage, it's not entirely set in stone. Just ask the reformed good dudes who figured out some savvy — albeit ethically dubious — life hacks. 

From how to enjoy Costco's $1.50 hot dogs without shelling out for a membership to the many devious uses of instant mashed potatoes, here are 23 evil life hacks for nice guys who want to finish first.