Certain flavors of Quest bars are on clearance at Walmart for $1 each. Boxes of 4 are $4.50 each. I was able to get apple pie expiring in September, they also had cinnamon roll that expired 2 weeks ago (still good, in my opinion, ate one last night).
I checked a couple stores in different areas near me and where my parents live in a different state, and some stores have it on clearance, some don't. Check brickseek before going. It might be in the clearance aisle or with the rest of the non-clearance protein bars near the pharmacy
Apple pie flavor 128305611
Applie pie 4 pack 52642272
Cinnamon roll 119975509
Cinnamon roll 4 pack 52642269
Double chocolate chunk 121186543
My first post, sorry if it's not up to par. Side note, I also found Cookies and Cream Quest Bars at my local Big Lots for $1.25 each