I wanted to get out to walk the dog early Friday morning because I had an important 11 am meeting — not a video meeting. Real life. So I got up early enough and shaved. I put in a new blade and noticed how much nicer it was. I go months between changing razor blades, and by the end of that time, it’s like dragging a broken beer bottle across my face.

I thought to myself that I need to change the blade more often. So, after I let the dog in from the backyard to the kitchen, I got out my phone, leaned against the kitchen counter, and I checked on ChatGPT to see how often I should change a Gillette Mach 3 blade, which is the brand I use. ChatGPT said every 5 to 10 shaves. So I set a reminder in Omnifocus, which is the reminders app that I use, to change the blade in two weeks, based on my shaving every other day, which is what I do.

I wanted to set a notification for that reminder because I usually don’t check OmniFocus until midmorning, and a notification would pop up on my phone screen first thing in the morning. That’s how I remind myself of things I need to do first thing in the morning — I set notifications to pop up on my phone home screen, because, like many people, I check my phone as soon as I get up. This may be a bad habit, but I’m not going to worry about that now.

I did not want to set a due date for the OmniFocus task, because you should only set a due date on tasks where there is a real penalty for failure to complete them. I learned that from the GTD productivity system.

I could not figure out how to set a notification for a task in Omnifocus without first setting the due date, and after much tapping around on the Omnifocus iPhone interface, I asked ChatGPT. ChatGPT give me a bullshit answer so I searched the web and that didn’t work so I hunted around on the Omnifocus website for the Omnifocus manual. I was not able to find a way to do what I wanted to do, so I just gave up and used the Due app to set the reminder.

Then I decided to double-check whether ChatGPT had misled me on the number of shaves recommended between blade changes, and sure enough, the Gillette website said that I should change every 15 shaves. It also said that there is a colored strip on that blade itself that fades when it is time to change the blade. I have been using Gillette Mach 3’s for 30+ years and was completely unaware of that. So I stood up from where I was leaning on the kitchen counter tapping my phone, and I went into the bathroom and fished the used razor blade out of the trash, and compared it to the new blade, and confirmed that there was a colored strip on the new blade and that was not present on the old blade. So it turned out I did not need to set a reminder at all.

Then I went out and walked the dog, which is what I had initially set out to do.