This might be the most obscure deal I’ve ever posted, though I imagine there are plenty of creative uses!
Amazon has the Medline Cleansing Bottle, 8oz. for just $0.64. Was $5.07.
Free shipping with Prime. (Not an "add on" item.) Excellent reviews.
https://www.amazon.com/Medline-ME…B0055QO4TW
Per Camel x 3:
Highest price – $16.10
Average price – $4.91
Lowest price – $0.64 (on 7/26/19)