While I am financially savvy, I’m also into some lighthearted spending logic. And if your math brain works anything like mine, we might agree on some things: anything less than $5 is free; it’s smart ...

They left a word out of "The Lattice Method." It should be "The Stupid Lattice Method." You still have to be able to multiply 6 x 8, etc. and doing it the original way is a lot easier to do. You don't ...