What are some modern conveniences we take for granted

We take pencil and paper for granted. Yea, it just a pencil we break them we throw them. The same with paper. We ball them up when it is still in good use. Yet what might happen with out them. We use pencil and paper for mostly everything. For planning out our complex computer program to  writing down stuff we what to remember.  Another thing we take for granted is phone. Just because their are million of more phone out in the world. We think who care if I break my phone I'll just get another one. Phone are amazing devices we only use simply.  Only do few unlock the full power of a phone.