Valentine—Getty Images/Fuse Millennials are often maligned for their lack of financial literacy, but there is one money skill the younger generation has in spades: saving. After growing up during the Great Recession, millennials want to keep every cent they can. (If you don’t believe us, just check out this Reddit Frugal thread inspired by our recent post on millennial retirement super-saving.)This generation may be way ahead of where their parents were at the same age when it comes to preparing for retirement, but the frugality doesn’t end there. Kids these days also