You mean like what objects around us are spheres and how are they helping us?
Well, surely you won't be seeing any giant spheres in your household, but there are tiny ones. I haven't built my own computer, but I'm pretty sure there are tiny spheres on the motherboard, or somewhere else, that could serve a variety of functions: Helping support the shape of the motherboard to fit nicely in the computer, transferring energy from one area to the next (if it's a transistor), or anything else really.
There's probably many other spherical objects used in daily life to help out the average citizen, but I'm pretty sure I've overlooked them quite frequently.
