What is the easiest way to track spending?

What might be easy for me, might not be the easiest or most efficient way for you. Everyone is different and some budgeting methods might come more naturally to you than they do for me. Which is okay, but until you explore or at the very least research into different ways, you'll never be able to find what works for you. For me, I use Mint.com to track my spending because it links to my bank accounts.