Missing Features
Many systems are very handy, but could be a much handier if the implementers had given some thought to extending them a little. I have complained about a number of these issues in the past, but the goal here is to highlight them as unfinished implementations of good ideas.
When I started working at IBM, long ago, the second-system effect had recently been described by Fred Brooks in The Mythical Man-Month. This is the tendency to take small, useful systems and add features that sound good but add so much complexity that the systems become worse, not better.
But some new features are very useful and worth some complexity. It's a line to cross carefully.
Phones - clocks
The time on a phone clock is generally given in the local time zone. If you don't know what time zone you are in, that is not enough information. The phone knows what time zone it's using, but this information is generally not displayed.
And a phone clock should include the next alarm time. I need to know at a glance when the alarm will sound.
Phones - always on lock screens
My comments on clocks apply to always on lock screen clocks too.
And the always on lock screen should be visible in any light. But with my Samsung phones, the display text is often too dark read. I guess they are trying to increase battery life. But what is the point of the always on screen if I can't read it?
My Google phones (from years ago) handled these issues. Why not Samsung?
And Apple still hasn't figured out that an always on lock screen is an important feature.
Cars - sticky switches for driving modes
Car manufacturers have apparently forgotten the value of sticky switches - switches that keep their contents when the car is turned off. Most notably on my Subaru Crosstrek, auto stop/start and sport/"intelligent" driving mode. Why can't it leave my settings alone instead of going back to default every time I start the car?
Cars - wake up - the line is moving
The Crosstrek has a neat feature that beeps for you when you are stopped and the car in front of you moves forward. That's in case you fall asleep in line at a stoplight. But it is not helpful if you are at the front of the line. With all the image processing in the automatic cruise control system (Subaru uses a pair of cameras, not radar), you would think that the car could tell you if the stoplight turns green. Or maybe this is crosses into the second-system effect.
Cars - backup cameras
Backup cameras in cars are great. I often would like to see the backup camera display when not in reverse. For example when going forward while parallel parking. That should be trivial, just a screen button.
Cars - daytime running lights
Daytime running lights seem like a good idea. But why only on the front of the car. Especially in fog, I want all four corners lit.
(My solution - I leave the headlights on all the time. This includes the corner lights. I have LED lights that don't use much power and last a long time.)
Cars - automatic headlights
Automatic headlights - another great idea except - they need to turn on at dusk, not when it is dark. And they need to turn on in the rain and fog. The light sensor could be adjustable so that it catches dim/cloudy/rainy conditions. And the car could turn on the lights whenever the windshield wipers are on.
Also, if you need to turn on the headlights when in automatic mode (because the car doesn't) - how about a separate button for that instead of having to change the mode? That way it could change back to automatic automatically.
As noted above, I just leave the headlights on all the time.
Cars - turn signals
Turn signals - how do you signal a U turn? A simple addition would be another blinking sequence - short, off, long, off, ... could signal a U turn. A bit more difficult would be the driver's switch for this.
Computer Mice
Mice would be much better if they could be put in horizontal or vertical only mode. On Amazon, I see a lot of mice with variable resolution. This sounds very useful. I will have to try one.
Stereos - tone controls
I guess my usage of stereo dates me. But I have found no point in having more channels for my sound system. And as my hearing deteriorates, high fidelity seems pointless. But as my hearing deteriorates, I need better tone controls. Specifically, more important than bass and treble is upper midrange, also known as presence. It adds clarity to speech (consonants) and timbre (the sound of an instrument that makes it unique). But this is seldom found on home stereos. I could add an external equalizer, but just a presence knob would handle most issues.
Incidentally, you could probably get rid of the treble control. Adding or subtracting with a 10 KHz shelf filter is completely pointless to me, and probably the vast majority of people that spend their life in the noise pollution of America. (This morning I did a one mile walk underneath a circling helicopter. It's hard to express the anxiety and frustration this causes.)