I wanted to congratulate you for actually knowing what you would like to do when you go to Europe!

Too many people post here for the 1st time and expect us to rewrite a guide book. Thanks for doing your research ahead of time kelseyclarice.

1. Make sure everyone has some sense of priorities of things they want to see (must, like to, nice to but could see another time, etc) and that that's clear to everyone.

2. Get together to group them on the maps and work out some rough plans in advance for the day or two ahead (something to talk about at breakfast!), but be prepared to chop and change according to mood, weather, something interesting you spot en route, or whatever.

3. Allow for "alone" time, and/or what to do if you get accidentally separated.

4. Get everyone to familiarise themselves (now!) with:

Getting around in London: www.tfl.gov.uk
http://www.tfl.gov.uk/gettingaround/15101.aspx
http://golondon.about.com/od/londont..._in_London.htm

Getting around in Paris:
http://www.ratp.fr/en/ratp/c_21879/tourists/
http://www.ratp.fr/plan-interactif/
http://goparis.about.com/od/transpor..._and_Buses.htm

5. Relax: tell yourselves there'll always be another time.