Free online invitation services have come a long way. Not only do they save paper, they also save the cost of postage and a trip to the post office, and come in many attractive designs. Create a username and password, select a design you like, type in the emails of your invitees, and press send. Done! The website will also keep track of your guests’ replies and allow you to message your guests in case you need to make a change in plans. Check out these online invitation websites: