I did house calls in the 90s for a TV VCR repair shop - actually didn’t mind the house calls. Also did cable modem swaps for Comcast - the same thing.
Obviously things have changed, but a decent percent were elderly people that had their TVs in TV mode (vs cable mode) - so they got channels 2-13, but not the higher channels. We’d always try to do this over the phone for free, but many just couldn’t follow simple instructions - and didn’t mind to pay us (at the time $35) to come out.
By the time I left it seemed like many people wanted wireless networks setup - and you could possibly get on the Nest Professional installation list - seems like a good and easy gig.
I noticed there were two type of people - about half would sit and watch you (not overly intrusively) - while they other half didn’t care and would leave you be.
One word of wisdom I learned from my boss that you might want to consider.
Our warranty was 90 days on the work we did - if something else went wrong - we didn’t cover that. Early on in my work there my boss heard me turning down a customer who brought her VCR back in as the new problem she was having clearly wasn’t related.
He came around and said. 'No problem ma’am - we’ll take care of it for you"
After she left - I asked him why he did that.
He said something along the line of “these people don’t know enough to understand the two problems were unrelated. Sure that’s our policy for the people that can figure it out on their own and to protect us in extreme situations, but we make enough to take care of the small percent that come back that aren’t our fault. She’ll have a great experience and know we aren’t gonna rip her off.”
I totally agree with the sharpening thing - you could also reach out to barber shops - as high end scissors cost a lot of money and the place (barber) I go to has a guy who come around and does straight razors and shears - and another barber their goes to a guy who sets up under a bridge six months out of the year. I’d love to have a local place to get my straight razors sharpened - I’ve tried to do it myself, but so far need more practice.
Stay away from people with computers - or have very set policies (IMHO) - I told a woman on my condo board I’d look at her computer (she said it was slow) - it literally took almost an hour for her computer to boot up - and she had - no exaggeration - at least 6 (maybe 9) toolbars installed.
People get stuff on their computers that I don’t think I could do if I tried.
It’s really rewarding fixing stuff - my favorite was always people that thought they had really bad problems - when it was something unusual, but easy to fix. Most common was this weird close caption mode I’d never seen before working there - it would have a black box (with no text) that covered everything except maybe a quartering have border around the edge. I think it was CC Mode 4 or something.
Also some toshiba TVs had this sales mode that it could enter if you held the volume up and down button at the same time. This was easy to do accidentally (well not easy, but over the course of hundreds of button pushes - you might eventually do it)
No where in the manual was it mentioned - and even if you unplugged it for days - it wouldn’t reset - all you needed to do was hit up/down at the same time again, but they’d never figure it out on their own (this was pre Internet forums).
We never charged for that if they brought it in - but still felt great to make someone’s day