If you wish to give a wedding couple a gift, it is most appropriate to send the gift to the home of the bride or bride’s parents before the wedding rather than bringing the gift to the wedding. This etiquette rule also holds true for monetary gifts. It is very easy for gifts and envelopes to get lost in transit during or after the reception.
It is also helpful to place a gift card inside the gift box or tape it to the box top inside the wrapping paper. This will help keep the cards from getting separated from the packages during transit and makes writing thank you notes much easier.