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
The air that is all around us has nitrogen in it.
Mostly household cleaners
ammonia ammonia
none
There are many common household base compounds formed from nitrogen and hydrogen. Some of them include hydrogen peroxide, household dyes, cleaning agents and so much more.
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.
Common household items that contain nitrogen include ammonia-based cleaning products, fertilizers, air fresheners, and some plastics. Nitrogen can also be found in foods such as meat, dairy products, and beans.
Scissors, ax
clock
The wife.