Money Maker: Biotrue at CVS

I am all about Money Maker (MM) items, whether or not it is something I would use, I usually can always find someone who can use a free item, which I made money on. If I can turn $6 into $10, I'll take it!
Here's what you need to do:
Buy 2: Biotrue Multi-Purpose Solution, 2oz ($2.99) - Receive $2.99ecb limit 2
Use 2: Q: -$2/1 Biotrue, any PRINT
OOP: $1.98
Final: Receive $5.98 back in ECB - a $4MM