Is couponing worth it? + Awesome CVS scenario!

Here's my shopping trip from today. I'll let you be the judge!

Store #1: CVS

First transaction:
2 Softsoap Pampered Hands ($2 each or $4 total)
1 Softsoap body wash ($3)
1 bottle Renu contact lens solution ($7.89)
1 box Kotex liners ($3.49)

Total: $18.38

Used:
(2) $1 off Softsoap Pampered Hands (IP - no longer available)
$1 off Softsoap body wash (7.24.11 SS)
$1 off Softsoap CVS coupon (printed on a previous receipt)
$2 off Renu solution (6.12.11 SS)
$1 off Kotex liners (7.24.11 SS)
$2 off Kotex product CVS coupon (printed on a previous receipt)
$8 ECB


Total out of pocket: $2.65

Received $11 ECB!

Second transaction:
2 Skintimate Cream Shave ($2.19 each or $4.38 total)
2 Shick disposable 10 count men's razors ($8.99 each or $17.98 total)

Total: $22.36

Used:
25% off coupon from CVS email (note: this was only good for regular priced items, which the razors were)
1 BOGO Schick disposable razor coupon (6.26.11 SS)
(2) $1.50 off Skintimate Cream Shave (IP - no longer available)
$2 off Schick coupon CVS coupon from CVS website
$4 ECB

Total out of pocket: $1.57

So, overall, I spent $4.22 out of pocket. I started with a total of $10 ECB in my stash. I ended up with $19 ECB. My total savings was $52.16.

Store #2: Walgreen's

Transaction:
2 Scunci (one was a bonus pack!) (2/$3)
3 Penway small notebooks ($0.19 each with in-ad coupon - a total of $0.57)

Total: $3.91 Saved: $5.38, received $3 RR

Store #3: Jewel

Transaction:
3 Creamette pasta (3/$3)
2 Heluva Good dip (2/$3)
1 bag carrots ($0.88)
1 gallon milk ($4.29)

Total: $11.17

Used:
(3) $0.50 off Creamette (6.19.11 SS)
(2) $0.75 off Heluva Good dip (6.19.11 SS)
Free milk coupon from previous trip
$2 OYNO from previous trip

Total: $1.92 Savings: $13.91, receive $2 OYNO

Store #4:
I went to a very small local grocer to grab some meat and veggies - I paid $9.04 for 2.5 lbs of ground pork, a bag of Tostitos, and a slew of veggies.

Overall:

For the whole trip, I spent $19.08 out of pocket. I saved a total of $71.46, and ended up with extra ECBs and RRs for next time. You tell me - is couponing worth it???? :)