Walgreens- $5 off coupon, this weekend only

Today and tomorrow are great days for deals at Walgreens. They have issued a coupon valid today and tomorrow for $5 off any $20 purchase ($20 after coupons/discounts.) I used this coupon to my benefit today when I was out on my lunch break. Read and try this scenario, or if you have the coupons, try my scenario:

• BioInfusion Organics Shampoo- sale, $5.99,
  
• BioInfusion Organics Conditioner- sale, $5.99
• These both have a rebate for $5.99 each this month making them FREE.
  

• 3 boxes Jiffy Muffin Mix, $.39/each
• 6 jars Skippy- sale, 6 for $10
• (used three $1.00 off 2 coupons + received $4 in RR)
  

• 1 loaf Sara Lee Soft & Smooth Bread, sale, $2.50
• (used coupon for free loaf of Sara Lee Bread)

The outcome: $15.73 OOP, received $4 in RR's, and $11.98 rebate for shampoo & cond= $ .25 overage!
Now is anyone out there besides me tryin' this stuff??