I thouhght about a way to detox before a new week and also after some "intense" partying on Friday/Saturday. http://www.thermalbad-zuerich.ch/index.asp?kat=Gruppe1 .
There is an entrance fee of 32 CHF for the basic access, and a bit more if you want some specific services. It is just downtown, you don't need to go to Baden. Why don't ww try from Sunday February 16th ?