Walgreens Yes to Coupon Trip

I'm just starting out with coupons and i noticed that different stores in different states have different prices. According to the Krazy Coupon Lady a ten pack of Yes to facial wipes are 2.99 but at my store they were 3.29. That's not too much more but it was a little disappointing. While i was there i did find a 40 count for 6.29 which was also part of the buy one get one 50% deal going on at Walgreen. I got three of the 40 count since they were only 3 left and one 30 count. Price per towel for a ten count were 33 cents a piece. Price per towel for a 40 count were 16 cents a piece. You are getting so much more for your money for less overall.
With this deal i bought three 40 count and one 30 count totaling 25.16. With the buy one get one 50% off deal i saved 6.28 bring my total down to 18.88. Then i used 4 coupons. I brought two 2.50 off coupons and two 1 dollar off coupons. I should have brought four 2.50 off coupons but i didn't know the price difference at then time and my nearest walgreens is 20 minutes away and the sale is over tomorrow. So with my coupons i saved an additional 7 dollars off making my new total with tax 12.72! $13.30 saving which is 53% savings. I got a total of 150 towelettes for 25 with the bigger packs. If  i were to get that many ten packs to equal 150 towelettes i would need to spend 49 dollars. It makes sense to get the value packs unless you had more coupons to use but still the price per towel would be more if you got the smaller packs.