Things that seem to take up most of my time, and which luckily I enjoy doing, are:
Making something that is unique or just tinkering with an idea to see how something works.
Partly linked to above as things are ‘better’ connected to the internet ! Better in that they are easier to access, control….a smartphone or PC terminal makes a great man-machine interface. However, sometimes a plain old mechanical switch is sufficient.
Anything to do with the house and garden.