It is advisable to have an invitation weighed at the Post Office before buying your stamps. Occasionally, invitations with lined envelopes and several enclosures cards require extra postage. Additionally, due to their shape, square invitations (in any size) also require extra postage.The use of decorative postage stamp is always a nice added touch.
Wedding invitations not only provide the important details of the special day, they also give guests their first glimpse of the style, tone, and formality of the wedding that is planned. CLICK on above link for some tips and etiquette guidelines relating to wedding invitations.