Hi! I went the DIY route and just finished up addressing all of our invitations in passable calligraphy...our wedding is pretty formal, so I thought calligraphy would be best. I also did the return address on the back envelope flap in calligraphy. Should I also use calligraphy for the response card envelopes? Or can I get away with handwriting them with a normal pen? FWIW, the response cards are pretty small, so it might be pretty cramped to do the address in calligraphy. Thanks!