Well, I'd like to say I keep my DDs stock and sensible, but....
My (now someone else's) Spitfire was my daily for one summer. It had twin SUs, headers, a very loud muffler, Koni shocks, race springs, tires and wheels, and a decent stereo with an auxiliary input.
My E30 was my daily for 3 years. It has poly bushings and mounts everywhere, sport springs, koni shocks, intake, chip, exhaust, MAF conversion, high-flow cat, stainless steel brake lines, revised fuel tank with two pumps, revised rear sway bar mounts, bigger sway bars front and rear, camber plates, tires, wheels, tucked bumpers, tint, blacked out trim, rebuilt LSD with more lockup, short shifter, CB radio, strobes all around, Hella conversions for light, a very good stereo, and a German license plate where my Florida tag should be in the rear.
My Trooper is my current daily. It has a 9,000 pound winch on a homemade mount, a 1.5” lift, a Lokka rear differential locker, a class II trailer hitch, a CB radio, a good stereo, 15x7 “Snowflake” wheels wrapped in 31x10.50 r15 General Grabber AT2 Tires, Hella driving lights, a Thule roof rack, a removable fridge, rock sliders, and a homemade drawer system in the back. Oh, and at the moment it is in pieces as I'm switching to a manual transmission and a vinyl floor.
All of them have had good wipers/ lights, a GRM sticker, and a GRM license plate frame (10 horsepower!) as well.
Essentially, I never stop modifying my DDs. I realized why the other day when I was driving the (bone stock) Fiesta– I like cars with soul and personality, whether it's the BMW's "I wanna go fast!!," or the Trooper's "I wanna tip over!"