I am having my shower in about a month, and received one gift in the mail so far ahead of time, and was shocked to find out the person was offended that I had opened it and was using it already. The gift was not gift wrapped, and there wasn't a card with it. Was I supposed to bring this gift to the shower and open it there? I have gotten a few mailed to my house since them that are gift wrapped, so was planning on bringing them to the shower to open there.
Also, how about using the gifts after you get them, is it customary to not use them until after the wedding? I had never heard this so wanted some opinions. Definitely don't want to offend any body else!