When planning a wedding, a lot it is for the guests, so you'll need to make sure you invite them.
Now you can base your invites on the theme of the wedding, so if your having a minimal beach wedding for example, perhaps go for a beach themed and simple invite, and of your having a big grand wedding, why not have a grand invite in the same exploit theme as your day will be.
Now, there are many options when it comes to invites, you can make you own, find a local designer who specialises in wedding stationary, buy on the Internet and select a generic pattern, or if you want to keep costs down, you can buy bulk packs in supermarkets or card shops which you can fill out yourself - remember, it's your day so make sure it's what you want.
Now, if your buying printed invites, see whether they do matching stationary such as seating plans, name cards, order of service, memory boxes etc. You decide what you'd like to match.
Before having your invites printed, make sure all the dates, times and venues are all finalised, otherwise you may have to have them reprinted if anything changed.
Any questions about invites, just ask.
Thanks for reading x