So I want to do my escort cards with the whole envelopes and card insert idea and I have to be honest I know nothing about envelopes other than they come in different sizes and you mail things in them. Do you think that A-2 4 3/8" x 5 3/4" or A-6 4 3/4" x 6 1/2" would be too big or too small? There are a ton of "discount" sites out there but aside from Cards and Pocket has anyone ordered from a reliable one or is Michaels my best place to go?? Thanks ladies!!