glitched so that some of my inbox messages were no longer correctly associated with their headers. Rebuilding the inbox failed to fix it, so yesterday I moved everything into a new mailbox called “Damaged Inbox.”

By that simple expedient, I have achieved Inbox Zero, and have maintained that state for a solid 12 hours.

Here’s an app that would have been worth a low-key post on @wisebread. It has a “Denomination Detector” (maybe for people with impaired vision?) and highlights security features you can use to check that the note is genuine, including a “Tilt Check Simulator” that reveals how the security features of banknotes function when in motion.

Source: Cash Assist Mobile App | U.S. Currency Education Program

After more than a year in which essentially every payment I made was via a credit card, I’m about ready to switch back to cash—for reasons closely associated with the points made in this article:

“How soon before paywalls go up around the public spaces we are used to crossing unhindered, before services that once seemed available to all on equal terms become subject to priority tiers?”

Source: Subscriber City — Real Life

I had not previously been aware of the site Forecast Advisor, which tracks weather forecasting apps and compares their forecasts to the actual weather in whatever specific place you care about.

Of course, accuracy is not a perfect metric for usefulness—a weather app that’s close enough that I’m wearing the right clothes for the day is more useful than one that’s usually one degree closer, but misses major turns in the weather.

A few years ago Jackie and I undertook to walk to Rivendell, replicating (the mileage of) Bilbo’s journey. We started, but we found that tracking the mileage in a notebook or spreadsheet didn’t really suit, and our venture rather petered out. (We got plenty of walking in that year. We just quit tracking it against Bilbo’s journey.)

Recently our friend Ashley Price started a walk to Mordor, replicating the mileage of Frodo’s journey from The Lord of the Rings, and it turns out that now there’s an app for that. You enter your mileage for each leg, and it tells you as you reach each milestone along the way. It also has a mechanism for “friends,” so you can see as they reach their milestones.

So Jackie and I are taking another stab at it. I installed the app, and for several days now have been entering our daily mileage.

If you want to join us, feel free to install the Walk to Mordor app yourself and friend me! (I’m in there as Philip Brewer, although perhaps I should have had some hobbitish name.)

Today we walked some in the University arboretum.

Unfortunately we got started just as the weather turned awful, so we haven’t been making very many miles per day so far. But as soon as it gets a little nicer, I’m sure we’ll start racking up miles as fast as our little hobbit feet can move us along.

Edited to add: We are also re-reading the Lord of the Rings. We meant to read along with our walk, but so far we’re reading quite a bit faster than we can walk. Maybe we’ll catch up at Rivendell where there’s a bit of a pause in the walking, but the prose carries on.

Here’s an idea for an app that someone should write. I call it MeetAt. The code should be pretty straightforward—you could easily enough build it on the guts of any location-aware app.

The user interface is simple. You see a short of list of common contacts (but probably also access to the whole contact list). You pick one or more contacts to whom you’ll send a message in the form of “Hey, let’s meet at [location]!”

Next you see a short list of common locations—home, work, the coffee shop, the library . . . Ideally the list would piggyback on some already existing list of locations that you care about, but in any case it would be configurable.

That’s all pretty obvious, but here’s the (slightly) clever bit: At the top of the list would be a button for “somewhere in between,” and when you clicked it you’d get a list of locations that are in between where you are and where your contact is. (This is assuming that you’ve previously approved sharing location information with one another via this app.)

The easiest implementation of that would be simply to draw a line, find the midpoint, and then do a Google location look-up which will present you with a list of named places near that location. (Or, if you want to be Google-free, something based on Open Street Map or something else.

You could, however, enhance that in a lot of ways. For example, your device could detect if one of you is on foot or on a bicycle or in a car, and could suggest locations that could be reached in about the same amount of time by both parties, given relative travel speeds. If one of you is on a bus, it could identify which upcoming bus stop would be the closest walk for the person on foot.

The app would also generate an expected meeting time, based on whatever travel modes it was expecting people to use.

The result would be a message sent that says, “Let’s met at [location] in [n] minutes,” to which the other person could reply “Okay” with a single click. With a few more clicks, the other person could propose an alternative location or time.

Personally, I’d use an app like that all the time.