We carry 3 anchors now. We carried 4 when rtwing.
We only ever used 2 at one time. I think then 2 anchors are enough and I think having 3 is fine because it may happen that you will lose one in a place where your shopping
options (or chances) are very slim.
PS We never lost
any so I think one anchor
is enough too when your cruising is more limited.