I have a Preschooler?

Today I have been dealing with the knowledge that I have an advanced 3 year old. He is no toddler. As evidenced by today's epic tantrum, he is a Preschooler.
So I coped in my usual way - hopping online and asking the oracle of Pinterest for some ideas and help on dealing with this cute mass of sharp elbows; big emotions; noise and dirt. I am know planning a list of things to do and to play with so I can get a few minutes of quiet as a parent and as a person.