What small software do you wish existed?

I wish there were a way to screenshare with customers while I troubleshoot that didn't involve more than one click. I currently use GoToAssist which is good software, but I have to screenshare with a lot of elderly users for my company's products, and most of them have no idea what "download" means. God help us if they're on Mac, because then I have to guide them through permissions settings over the phone to let me see their screen.

I would pay good money for something like this.

An app that intercepts the personal data that I generate and allows me to dictate what the computer transmits, for instance I could tell it to say that I am a poor 20-year old white woman and then advertisers who target on that stuff would more likely advertise stuff to me that I genuinely couldn't care about if I tried to.

This would waste their time and money and cause me to giggle when I see an ad for something very girly knowing that the me they think they're selling to isn't real.

I'm not the only HN reader who claims to use a different email alias for each recipient, but mail user agents require me to remember to set the return address manually to the right alias on each outgoing message and risk leaking the wrong one if I forget. Some kind of email middleware that maintains a mapping from recipients to aliases and automatically slaps the right alias onto each outgoing message seems like it should be feasible for a single developer, but I can never find the motivation to do it myself. Apologies if I'm overlooking some well known application or service that already does.

I wish that I could access my PIM data through a filesystem, and ideally synchronize using regular file sync features. I'm talking things like contacts, calendar events, bookmarks, etc. Give me semi-structured (probably yaml, I know it has issues but I like it) data and let me add arbitrary notes and fields.

Data Logging App for personal use.

Define form fields per line

Auto detect data types (date, location etc)

Execute - shows a form for logging data.

Define as many forms as required

Tabular/Chart views of recorded data.

I would pay for this app.