Quotidian, I've never heard that word before. Mundane, everyday routines of daily life.
Nanotechnology can require some definition too, since it's an often misused buzz-word. If you want to take nanotech to it's most interesting, advanced form, it is best described as molecular manufacturing. It would be hard to think of things about our lives that this level of tech will not change rather than what will change.
Well, I simply have to find something where the nano technologies are applied and talk about it... Like the textiles who can't get dirty... It's nothing to complicated...
I'm sorry for my English... I never had real English teaching classes...