When you were a kid and traded Valentine's did you make your own or did you buy them? We made some when we were growing up for our parents and grandparents, but then for the kids in the class, we bought the cheapie box and had to fill out the names on the envelopes and sign our own on some. I remember one boy gave me two and I called him out on it, not knowing he did it on purpose because he liked me. eww cooties
My parents used to buy them for me to give out to the other kids in my class. As an adult, I don't really do Valentine's Day, other than partaking in the discounted chocolate the day after, but if I were to ever do cards, I'd probably make my own unless I ended up having to do a whole bunch, in which case I'd probably buy them just to make my life easier. (Unless I gave myself plenty of time to do it, then I'd consider making them instead.)