Postage Question....

Before I take a hike to the post office...I'm wondering. if I should do this.... I wil be sending out my invites by the end of July and I wanted to buy books of stamps in advanced for my response cards....

My concern is will the post office honor the stamps after the price increase is in effect? I heard stamps are going up in July and i don't want to waste money on stamps to then find out that i have to add 1 cent stamps.

any suggestions? should i just wait?

they are going up again? Didnt they just go up in May?

and no you have to add the extra postage.. you should buy the forever stamps