Word to describe "everyday things"

routine:

noun 1. a customary or regular course of procedure. 2. commonplace tasks, chores, or duties as must be done regularly or at specified intervals; typical or everyday activity: the routine of an office. 3. regular, unvarying, habitual, unimaginative, or rote procedure.

The word mundane can be appropriate here, as it can be used to refer to things that are common or ordinary. Brushing your teeth or taking a shower are indeed mundane activities. Note that this can have a bit of a negative connotation, suggesting that the activities are common enough to be boring. If you want to avoid the negative connotation, routine (as suggested by gbutters) may be a better choice.

a word to describe everyday things. Things is about as general a word as I can think of...how about

commonplace

If you mean activities, you could use workaday.

I believe that this word greatly fits the definition of "everyday things."

Commodities: Useful or valuable items. Usually very important necessities for life such as water or time, but its connotation fits very well.

May I have the opportunity to add my version of the (not so) trite word:

Hackneyed

Also consider a word called:

Chore

usage: "..my daily chores"

Not to mention that the accepted answer is laconic in that I personally prefer its usage.

"Jim got so engrossed in watching the soccer match that he forgot the quotidian task of watering the plants."

the minutiae of everyday life?

Daily chores might fit well here.

You can call that your daily routine. And we know that a routine is a usual or fixed way of doing things that are done regularly at a specified intervals.