DUH! not thinking

So I am not sure if I posted about the FAR contact solution or not but they are actually PAYING me to take it. Yep, it's true. Here is how it works:

$1.99 Contact solution
$0.11 tax
--------
$2.10 OOP
-1.99 rebate
-0.20 extra 10% for putting rebate on a walgreens gift card
(.09)...they are paying me 9 cents to take this off their shelves. It is something I need anyway so HOORAY!