Ok, based on previous feedback, I tweaked my RSVP:

On the long blank line, I will write in the names of the invitees. I like this idea, since I am not having inner envelopes.
WDYT? Is it too busy?
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Re: Post-o-rama. RSVP opinions.
♥ bfp1 06/14/2011 ♥ edd 02/22/2012 ♥
♥ baby jennlin born on 02/15/2012 ♥
who says you can only wear your wedding dress once?
honeymoon bio ♥ married bio ♥ planning bio
jumped ship to the new and improved nest. back to TB for baby boards.
___ blah blah attend (I forgot what it said)
___ number attending (indented on this line)
___ regretfully decline
Also, if you're writing in the names, I don't think you need the "number of seats" line. That line can also backfire because while it's intended to keep people from adding on uninvited guests, they could also say, "Oh Joe can't come, so I'm bringing my best friend Jody instead." And you can't really say you don't have room because "You've got two seats reserved for us!"
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