Now you know there are many levels of free, some are outright free, some are via auction sites and what not. This is a bit complicated so bear with me.
I bought this item on e-bay. This was buy it now, for 28.95. So already, we have a savings of 21.04.
Next, I spent $17 of this from a promotion from this morning. If you downloaded this app on iPhone OR android, you received a $5 amazon gift card. Awesome, but not part of this deal! But, you could refer up to 5 friends, and received $5 for each referral, as well as $1 for joining. I signed Bill up (so now we have $10 in amazon gift cards!!) and 2 people from one of the blogs I follow joined using my link, so I earned $15 in referral dollars, and can potentially earn $10 more on my account, and $25 more on bills account (use https://www.clover.com/
So that got the balance to 11.95, which I paid using money I earned selling "junk" on ebay, so it was "free" money in my opinion.
AND I earned 0.68 in eBay bucks, so this was actually a money maker in my book!! Woohoo!