Laundry

I did a little research. It appears most people in Prague have a washer at home, so there are few laundromats.

It might be easier in Vienna, but could cost as much as $50 at a laundromat, who knows how much at a hotel.

I think we should plan on staying somewhere where we can do our laundry ourselves.

Passport

Looks like we are all set there. They are valid for 10 years. I don't look substantially different than I did in 2009. I assume I look older, wiser, and sexier, like George Clooney.

I forget if you renewed in 2009 or used yours from your grad school trip, but that has been less than 10 years. Good thing you haven't officially changed your last name, otherwise you'd need a new passport.