Besides the every day kind of tech stuff, I own an iScooba and IRoomba; robots that clean carpet and clean tile floors. I also have a robotic cat box. Now that is the one tech thing that really works great. You fill it up with litter, the cats use it, this thing separates the cat "stuff" from the litter. About twice a week, I open a drawer at the bottom, take out a bag, easily insert a new bag, and the thing is good to go.
The floor cleaning robots are just so-so. My house is too big for them, folks with smaller rooms love them, so I will probably sell them off. But anyone wanting a useful automatic cat box, well, this thing I have is great, but a bit pricey!
I've go lots more gadgets, but those are the most interesting and unusual.