I like shotguns. Buy them used and they are cheap. Ammo is cheap, even the .410 that people seem to deride.
I've got single shots (farm tools), double barrels (farm tools), pumps (for serious stuff), and even old bolt actions (for fun).
My latest aquisition was a 1940 H&R Game Gun, a 16 ga bolt action w/tube magazine. I traded an Ithaca Model 66 Super Single 20 gauge for it.
My funnest one is a 1970's era Mossberg .410 bolt action with C-Lect choke. And it would be a great squirrel gun, too.
My wife's shotgun is a Winchester 1300 pump 20 gauge ($165 used).
My "Prepare To Repel Borders" gun is a 1970's Ithaca 12 gauge Featherlite Deer Slayer Police Special, 20" barrel, cylinder bore, rifle sighted. That is as tactical as this old boy gets. Right now she's leaning just inside the bedroom closet door loaded with OO buck with a butt cuff with 5 more rounds.
Oh, and I am so un-tactical my bedside hand gun is a Ruger Blackhawk in 45 Colt.:mrgreen: