Ok, so I just recieved my invitations; flat with a response card and envelope. However, in addition to the "fancy" envelopes I ordered with our return address labels, I recieved blank envelopes as well for both the response cards and invitations. My first guess was to put the response card and envelope inside the blank envelope, then put that with the invitation inside the large blank envelope, inside the fancy outer envelope. However, the blank envelopes are the exact same size as the fancy ones and therefore one does not fit inside the other. Is it ok to just forget about the blank envelopes all together or am I missing something? Please let me know if anyone has any suggestions, I really need to get them in the mail! Thank you!