I have been wearing panties 24/7 for years now, and I just love it. I haven't counted them, but I am sure I have close to 100 pair of panties. I have about 12 I wear all the time, and others when the mood strikes me.
I do have 3 pair of men's underwear for doctor's appointments, I know I should just wear my panties to the doctor, but I can't bring myself to do that yet, also my wife would freak if I did wear panties to the doctor.