Since I discovered a USB DAC/Pre-amp, I no longer miss headphone jack. My headphone sounds even better using usb dac/pre-amp from audioques. I recommend this setup if your phone don't have headphone jack and you still want to use your expensive headphone. Link here: https://www.audioquest.com/page/aq-dragonfly-series.html
I am not a native speaker and 'descent' is not really on my active vocabulary but 'decent' is. So for me it took couple reads to understand what you meant. Looks my brain is looking for familiar pattern to match.
I ran shopebike.com, a dropship of electric bikes and soon electric scooters. I provide customer supports via email and sometimes over the phone.
It has generated around $8000 a year so far, mostly in the warmer months. I tried google ads words in the past, but the cost was too much so I dropped it in the beginning of the year. Maybe I wasn't doing it correctly, but it was almost no conversions.
Earlier this year, I helped out a friend setting up online shop selling electric bike (dropship model). It has been good this summer, average of $1000/month net profit. Traffic is still very low but constant buyers. - shopebike.com.