Thank you Notes / No Gift

I like the idea of thank yous even without a gift. if they provide one later on, send another but it can be a regular card and not something special from the wedding, if you already sent one of those.

While I generally disagree with sending thank you notes when there was no gift or special help offered, I would say if you are going to do it, don't wait any longer-- send them ASAP. If you delay, they will wonder if you were holding out for a gift.

If they do end up sending a gift, yes, another note is necessary.

Thank you for celebrating with us.

I agree. Always send a thank you to anyone who attended. I also think you should send them out ASAP. Sometimes a longer time gap can make it seem like you found the thank-you's to be more of a chore than a gesture of appreciation. If you get a gift later on, send another thank you or even just a phone-call thank you.

You thank people for coming to your wedding at the wedding. You thank people who gave gifts/cards via thank you card after the wedding. If they didn't get you anything, there is no need to send them a thank you card as you should have already thanked them for coming.