Feb 17, 2012 - 5:29 PM
Concerning Zermatt and Lucerne I don't think I have anything to add to my previous post.
If you want to find possibilities for day trips or activities in or around Zürich, you may find the search option of this forum (top right corner of the screen) very useful.
May be you would like to visit the Rhine falls near Schaffhausen
? Just a possibility during your stay in Zürich.
If you like to visit a museum I can recommend the Swiss National Museum
Good luck with planning your stay