Many people send birthday e-cards. You can take that a step further and send your invitations online. Although this is somewhat unconventional, this way will certainly save you money. Plus, your guests can easily reply.
You can often get massive discounts (up to 50%) by working directly with the manufacturer and not the retailer. Even with the lower price, you'll still get beautiful invitations. However, as you can imagine, dealing with the manufacturer rather than the retailer involves a bit more hassle. But if your mind is set on getting Affordable Wedding Invitations, then by all means consider this option.
DIY (Do It Yourself)
There's nothing wrong with having cheaper invitations simply by making them yourself! This can be a tedious task if you have many guests, but if you're having a smaller wedding, this is a good option. Also, if you want to save time, you can purchase wedding invitation kits. These kits have all the raw materials you need to make awesome invitations.
There may be great sales at your local printing stores. Also, smaller vendors are more open to giving you a discount especially if you need many invitations.