Make sure to double check all addresses before mailing out your invitations. If you aren't sure of an address call the individual or send an email for a confirmed address, this will save time and expense in re-mailing a returned invitation.
If you have a color scheme to the wedding include that in the invitations. There are a huge number of traditional and non-traditional types of invitations that can be customized to match any type of color or pattern scheme.
Use a font on the wedding invitation that is easy to read and will provide a clear message with no chance of misunderstanding. Some of the very ornate calligraphy type fonts are hard to read and numbers for addresses may be particularly hard to determine for some guests.
