Fastmail has a really nice subdomains feature - I have an alias in fastmail of 'shop@mydomain.com'. Any email for XXX@shop.mydomain.com gets delivered to shop+XXX@mydomain.com. Better than catchall, because all the spam gets sent to JohnSmith@mydomain.com, which is dropped.
The benefit it has is that the 'shop.' subdomain can't be guessed from the DNS records. I get a lot of spam to <randomname>@mydomain.com.
Of course, if someone sees my email address, they could certainly infer a new one. But I'll deal with that if and when I get singled out. I don't think the spammers often actually look at the millions of addresses they use.
If I start getting spam on a particular alias, I can set up filtering rules to delete them.
This is actually really useful - you have a map of 'what is the fastest way home from anywhere in the city?' On moving to a new city, getting a map like this and memorising a few of the arteries would help loads with familiarization.
If you are busing... Sure the argument can be made that this doesn't take into account light-timers for walking, but if you're greedily selecting for shortest distance, this is exactly what you want when walking.
Transit heat maps are generally used for autos and buses, but could just as easily be made for walking. You'd just code the average wait time for timers into the heat map algorithm.
If there's someone in the office having a confrontational phone call, I have to either feel their rage or isolate myself (loud music). Seeing other people's injuries (especially my son's) is overwhelming. I naturally do the 'Choose the other side' suggestion from the article - possibly due to an incorrect belief that other people act rationally, and so must have had some reason for being mean. I have to be really careful with emotive TV/films. They can screw me up for days.
