This reminds me of a design competition a few years ago that I saw in a magazine, where prominent designers were hired to redesign the simple, common, every day

This reminds me of a design competition a few years ago that I saw in a magazine, where prominent designers were hired to redesign the simple, common, every day invoice layout. The results were a hideous, arty, mess that almost every business surveyed with the samples said were unreadable and would increase the workload on their accounts staff. All they wanted was a simple layout with the invoice number and date somewhere on the top right, then the total amount and the tax breakdown somewhere on the bottom right. That facilitated data entry into their own accounting system for later processing. If they wanted to query a specific thing on the invoice, that was a secondary consideration, but even then, they wanted things laid out simply so they could find the line item, see the price (and quantity) and the line total. That was it. Something the common, every day invoice layout does well today. The problems I have with this concept (and this comes from over 20 years of installing Point of Sale systems), is that a lot of POS systems these days still print the receipt items as they are scanned (to save time, I guess). So having the bubble chart at the top would be impossible as you don't have all that data until the entire transaction is finished. Also, when the customer gets this receipt, the transaction is over. This is after the fact. It is really hard to 'undo' anything, and any learning about spending patterns will be forgotten by the time they next do a shopping run in a few days. Another thing - I frequently have blow outs in my shopping, but that is usually when I tend to treat myself to a special item, or perhaps purchase a new frying pan etc. as part of my normal food shopping. This would result in a large bubble or bar on my receipt, whilst negating other more important things to a much smaller scale. For example, last week my fresh veg bar looked like: [======....] but today it looks like [==.......] next to my very expensive tub of foie gras that I impulsively purchased as a treat or for a party. I may have bought the same quantity of vegetables, but visually it looks like I really skimped on them this time around. I applaud designers such as this OP who try and push the traditional boundaries and expectations, but sometimes, a little more real world experience and application would save everyone a lot of time. This is akin to a non-pilot enthusiastically putting forward and promoting that circular runway idea from a couple of years ago.