I save all of my receipts from all orders... gonna tally it up on my one year and see if I really saved or the truth: spent a wee-too-much, lol!
I did this. I added up all of my receipts from the first year incuding PVs, batteries, attys, cartos and juice making supplies and compared the total to the $250.00 a month I used to spend on burning death. At the end of one year I had saved $2,100.00! I have bought several mods too, including a Chuck, 5V GLV and a Buzz.
I celebrated with a new 47" LED TV and a wireless router set up and I'm still $400.00 in the black.