I know at the end of the day it's a personal preference, but do you prefer disabled parking plates or the placard?
You need both. Plate for your car; placard when you’re in someone else’s
I have plate on my car and placard to take when with someone else driving their car.
I have both because when I go for an epidural I can’t drive home so I use the placard for the person that’s driving me
I prefer the placard because if I ride someplace in someone else's vehicle I can take my placard with me. If I only have the plate than I can't use it in someone else's vehicle.