So today i opened 2 more RSVPs and we got our first no from my FI cousin who is out of state. I was shocked to see a check in the envelope. I thought it was incredibly generous of her and sweet. My question is...should i send a thank you now or wait until all my thank yous go out after the wedding. i dont think waiting that long is approriate. in the past we have gotten some checks from family for our engagement and i have sent out thank you notes asap.