Several, but I could use one. The "old" warhorse is a 12ga camo pump that I have both a smoothbore and a rifled barrel for. Use it as my turkey gun, but looking forward to trying it on deer in a shotgun state one of these years. Shot some clay with it back when it was my only shotgun. Next up was a decent 12ga semi. Tried that on waterfowl this past year and now it's my clay-breaking gun, although I haven't been getting out for much recently. Also grabbed a 20ga semi for when I feel like something really light or to let new shooters try out.
Could the pump do it all? Yes and more, but who doesn't want more guns?
I am still drawn to doubles, in spite of having no real reason for them at this time.