Score a two-count pack of ZzzQuil Nighttime Sleep-Aid for $0.50 at Walmart! Look in the trial/travel section for clearance items. I found ZzzQuil marked down to $1.00. There is a $0.50 Checkout 51 rebate for ZzzQuil that does not have any size restrictions. Buy the two-count pack, pay $1.00 out of pocket, and redeem the rebate for a final price of $0.50.

ZzzQuil, 2 ct:

Submit $0.50/1 ZzzQuil, via rebate app (checkout51.com)

Pay $1.00, Submit for $0.50 Checkout 51 Credit

Final Price: $0.50

ZzzQuil, 6 oz:

Use one $1.00/1Vicks ZzzQuil product (coupons.com)

Or $1.00/1Vicks ZzzQuil Product from PG 1/29

And submit $0.50/1ZzzQuil, via rebate app (checkout51.com)

Pay $3.97, Submit for $0.50 Checkout 51 Credit

Final Price: $3.47