double dipping question

Okay I did a little reading and looking on other sites to see how other people do it and I think the easiest way for me to continue to do it is basicallly count an RR/GC/ECB when I make a purchase with it.. that way at the end of everything I will see my OOP expense. I have made comments in the past "but I also got a $9 RR and will receive $28 in rebate" and that's fine.. but no longer will I say "so this transaction really only cost me $1.38" because those rebates will lower my OOP later in the game. The only thing that I *may* add is mail away rebates that I just throw in my checking account because those will benefit my checking account later but it's not like I'm posting my checking account logs! lol!