Envelopes are one of the few must-have items that you need for your home or office. With invitation envelopes, you'll always have the perfect size on hand for mailing invites to your friends and family for an upcoming party. Here at Giving Assistant, you can find a promo code or coupon for your favorite office supply store. You can choose from among many different sizes, styles and colors. Some even have windows. Envelopes also let you mail in payments for bills, send out your wedding invitations and save-the-date cards, and so much more. Check with us to save on your purchase.