The air has nitrogen in it. I think most plant based foods (such as spinach) contain nitrogen (it is used as a fertilizer in soil, so I assume it's a necessary mineral for plant growth). Possibly also in aerosol propellant canisters (such as squirty cream or hair mousse).
No, rubidium is not found in household objects.
Two household objects that have magnets are: fridge magnets, and sizzlers
Mostly household cleaners
The air that is all around us has nitrogen in it.
Ammonia and air both contain Nitrogen.
none
ammonia ammonia
There are quite a few objects in a household that may be made of fiberglass. One of these objects is the siding on the house itself. Other objects include insulation, electronics, doors, showers, and bathtubs.
Scissors, ax
The wife.
Hill
clorox