I don't know if anyone else feels this way, but I worry about wedding gifts, specifically people not being able to identify my card/and or gift. Since people don't normally open your wedding gift in front of you, you can't be like 'oh that's from me' if they get confused. I worry that my card is going to get separated from my gift, especially if it is wrapped rather than in a gift bag. It probably shouldn't bother me so much, but my parents drilled into my head at a young age the importance of thank you notes (I am the only person my age that I know who sends a thank you note for every gift I receive) so that probably has something to do with it.
Last weekend, Boyfriend and I went to our fifth wedding of the year (only one more to go!). It was one of his buddies so I put him in charge of the gift. He decided to get three different things, meaning I had to wrap three different boxes. This was a problem for me because I couldn't even rely on my normal strategy of taping the card to the box. Luckily, I had an idea when I got home--my wedding wrapping paper is plain white, so I got out my stamps and stamped on each of the boxes. If it is a super fancy wedding, this might be a little to casual but it was perfect for this occasion. It added a little interest to the packages and made it impossible for them to not know who they were from.
(Please excuse the terrible pictures. I realized right before we were about to leave that I had forgotten to photograph them and had to rush to get it done before Boyfriend carried them away).