I carry 3 or 4, depending on whether you consider the Nova a putter.
2 K3 Bergs or 2 Electron M Pilots, depending on how i feel. Putting / short upshots only, in case I lose one and so I can wear them evenly.
1 Proton Envy for putter drives and hyzer upshots
1 XT Nova for drives and, well, Nova...