Originally Posted by
wsflyer
We travelled by TGV from Paris for the afternoon and toured Taittinger and Pommery. Neither is a small house, but both have interesting tours. The advantage of Taittinger is that you don't need reservations. Pommery features revolving displays of art in the caves.
We did this, also, and found it an enjoyable day. As wsflyer points out, you don't need formal reservations with Taittinger, but the tour you join may very well be conducted in French - some knowledge of the language will be necessary.