Skip to main content

Introverted Swiss Grocery Shopping

A few months ago, I finally gave in and applied for a Supercard and a Cumulus card -- the loyalty cards for Coop and Migros, respectively. The process was a bit more onerous than in the US. I had to apply online, then I received the cards in the mail, but the cards couldn't actually be used until I confirmed them again online. This is to ensure that I have both the cards and the online account information -- a sort of one-time 2-factor authentication.

With the cards, I was able to drastically change the way that I shop. Now, when I go to the grocery store, this is the shopping process:
  1. When I walk in the door, I stop at a kiosk where I scan my card (or a picture of my card on my phone), and it unlocks a handheld barcode scanner. I could also skip this step and scan groceries with an app on my phone, but my phone is a lot slower because the camera takes a while to focus on the UPC.
  2. When I want to buy something, I scan it with the barcode scanner then put it into my reusable grocery bags or my old lady cart. The scanner (or the app) shows me what I scanned with a running total and a way to remove items if I want to put them back on the shelf.
  3. When I'm finished shopping, I go to the self checkout register and scan a special "I'm finished" barcode on the front of the register. That causes the barcode scanner to send a list of my purchases to the register. The register shows me the total and prompts me to return the scanner to a receptacle above the register.
  4. Occasionally, (I've only had it happen once so far) the register summons a person to check my order. The cashier just grabs a few different items from my bag and scans them to verify that they match what I told the store I bought. The register walks the cashier through the process ("Scan _3_ more items to verify purchases")
  5. I pay for my groceries. Usually I use Twint on my phone, but I can also use a credit card or use my store account for this.

There's no scanning or bagging at the register, so it's fast. The payment process only takes a few seconds. Most of the time, I don't have to talk to another human being. It's not quite the "just walk out" process that Amazon Go is promising, but it's pretty darned close. 

Comments

Popular posts from this blog

The Chromecast conceptual model

Google makes a device called Chromecast . It's a relatively inexpensive way to turn any TV into a "Smart" TV capable of playing movies or music. It's a clever bit of engineering, but I've run into a few people who have trouble understanding how they work. The key thing to understand is that the Chromecast is the device that's actually receiving and playing the movie (or whatever), and your phone is just the remote. Here's how the process works at a high level: You start watching a video on Youtube 30 seconds in, you decide that you'd like to watch the rest on your TV, so you press the "Cast" button. Your phone stops playing and tells the Chromecast "Get this video directly from Youtube and start playing at the 0:30 mark"  When your phone initially asks the Chromecast to start playing, it also specifies a "default thing" to do when the Chromecast is finished. If the Chromecast is playing a Youtube video, it might...

The Virus By the Numbers

I'm writing this because there's some really insane stuff that's being said by people who should really know better, and I'm sick of discussing it one post or email at a time. So, this is my One Big Post that I'll point people toward rather than bringing it up again and again. In case you haven't noticed, we're in the middle of a pandemic. Just so that we're all using the same terminology:  The virus is Severe acute respiratory syndrome Coronavirus 2 . It's usually abbreviated SARS-CoV-2. It's a brand new kind of Coronavirus, so for a while, before it had this awkward name, people were calling it "novel coronavirus". (For the non-English speakers and D students, "novel" is another word for "new".) The disease that the virus causes is called Coronavirus Disease 2019 , and it's usually abbreviated COVID-19. It's called that because it was discovered in 2019. This came out of nowhere in China in late ...

Separate Addresses and Have I Been Pwned

Many years ago, I started giving out a different email address to every places that asked for one. To do this, I had to own a domain and set up email hosting. When I first set this up, I accepted email addressed to any address at my domain. Since then, email security has improved a lot. To use security features like DMARC , I had to stop accepting all addresses and had to only accept mail from a list of valid addresses. A few years ago, a guy by the name of Troy Hunt started collecting the lists of compromised databases and passwords that were floating around the internet. He put together a site called Have I Been Pwned  (HIBP) and after proving your ownership of a domain, you can request a list of all of the accounts at that domain that have been compromised. You can also do the same thing for a single email address if you don't own a domain. It's important to remember that this isn't a list of ALL compromised accounts -- only the ones that have made their way to ...