We received a check today from guests who cant attend our wedding. I had not planned for this and we dont have anything set up (still have separate accounts). We dont want it to just blend in with the rest of our money. How long do we have to deposit the check? Also, it is from one of FI's guests and we agreed that he would write thankyou's to his side, and I would write to my side. I searched knot but couldn't really find anything helpful for him to write thankyou notes. Has anyone found a web page that has been helpful for your FI? TIA!