WOW- I am heading to Harris Teeter to grab garbage bags! I HATE paying for garbage bags but I like the good kind- not the cheap ones.
Hit up Harris Teeter before 9/18 during their Triple Coupons  and grab this VERY good deal on trash bags:
Buy (1) Hefty Gripper Garbage Bags, 13 gallon – 40 ct — $5.99
Use (1) $.55/1 Hefty Garbage Bags 09/15/2013 SS (exp 11/30/2013)
Submit for $.50 iBotta Deposit 
Final Price: $3.84