Audio, reading, gaming and computing. Obviously my family.
Gaming was very big into TOTL PC's Building and Upgrading. Not so much now though. I have most all of the consoles from last 20 years and many portable ones too.
Many bits and bobs including all the relevant required cables needed to join my source and Amp/Dacs together.
No Snake Oil cables though. Changing my mind slowly but surely regarding aftermarket premium cables though. I would not however pay a lot of money for one. I am intrigued though. Good quality cables can be good/useful. If not only for their increased quality. Not sure about a lot of night/day claims re, the SQ changes. I am open minded regarding increased SQ though and have swapped various cables out with some perceived changes in the sound profile. Using Balanced Iem cables has been a wise move. I get better SQ IMHO.
Various Balanced Iem cables.
Lots of extension sockets and chargers. A few surge protected multi socket power extensions.
Other Audio Equipment:
Couple of Mini disc players, radios etc.
Most anything but I am not a lover of Bass heavy music. I have always liked a bright sound to my headphones hence the HD700s and HD800. Even as a teenager I would always increase the treble and lower the bass.
I am predominantly an IEM man.
I am partial to Jazz, Classical, Pop, really like Acoustic stuff though, most anything acoustic. I use Spotify Premium and Amazon Music.
I am 48 years old and married with 2 children. I am an unashamed serial upgrader.