Most of you probably already know that the cost of stamps is set to increase May 12, 2008. The price will increase to 42 cents. What does this mean in practical terms? For those mailing your invitations out before the rate increase, be sure you provide enough postage on your RSVP envelopes so they are not returned for non-sufficient postage to your guests. I recommend buying the Forever stamps (with the Liberty Bell on them) for this, so that regardless of the rate increase you know you are good with the postage.For those of you sending out your invitations after May 12, 2008, get over to the post office and buy the liberty stamps now, so that you don’t have to pay for the extra postage after that date. The Forever stamps are non-denominated, meaning, they are good forever {just like their name} . If you purchase them early you will never have to pay an increase in postage.Also, it’s always a good idea to take a complete set of invitations to the post office to weigh before sending out your wedding invitations, to be sure you have sufficient postage.