Helpful Hints from joeeze: How to make your champagne more bubbly

So simple even I can do it: Wipe the inside of the glasses with a cloth or paper towel.

A report by French scientists published in the Journal of Agricultural and Food Chemistry showed that wiped glasses show "an excess of effervescence" due to the hollow cellulose fibers that get displaced from a cloth or towel acting as "nucleation" (bubble formation) sites.