<prompt> Human: Ever buy in bulk to save on the per unit cost? The battle to get your moneys worth used to only be whether you would use all of the bulk items you bought. Beware, Ive noticed Amazon sellers taking advantage of this assumption and charging more for bulk buying.I dont know if they prices will show up the same for everyone, but as an example 1 Qt of oil is 6.47. A 5 Qt jug is 7.69 per Qt. A 3 pack of 5 Qt jugs is 8.02 per Qt. A 6 pack of 1 Qt jugs is 9.85 per Qt.Ive noticed this tactic at local grocery stores too. Be sure to calculate the per unit cost when buying anything these days, folks.Edit: Sorry about the notifications, no idea why it happened. Many people I talked to IRL were shocked when I told them about this, so I thought Id share for the people who dont know that paying more for bulk is becoming a common practice.Edit2: This has blown up a bit, with a surprising number comments about toilet paper. I always get the big Charmin pack from Costco.Assistant: The worst shell-game in the price-per-unit scam is toilet paper and paper towels. The only metric that matters is price per linear foot or meter. And yet, stores use roll when the rolls are different lengths or sheet when the sheets are cut to different sizes And retailers wont even be consistent in their tagging on this point from one competitive offering to the next. Then you have two-ply to contend with...And dont get me started on the diameter of the cardboard tube inside the toilet-paper roll. It is bigger today than it was in the 80s, when I was an adolescent teen male. Dont ask me how I know this.Human: How do you know this?  <response>: Reading between the lines I think he has inserted his manhood in them tubes and has noticed a descrepency as time has gone by. 