Here in the States, it's Thanksgiving week, that annual migration/feast/shopping week.
It's usual at this time of year to pause and think about things to be thankful for. Here's a little twist on that 'hmm, let's give thanks' exercise:
Name a small, mundane, everyday thing that you feel is indispensable not just to yourself but to society. What little thing do we see, use, or touch every day that makes life SO much easier?
There's a lot of 'em -- name the one you think is the most important.