Which stamp to use where? With poll

OK so I bought a ton of postage today. My invites are going to cost $1.00 to send. So I'm going to need to use 2 stamps on the envelope. And then I need .42 cent stamps for the response envelopes.

I wanted to use custom postage from zazzle so I ordered special .42 cent stamp postage.

Then I bought .59 cent wedding heart postage from the post office.

And I also bought .42 cent wedding heart postage from the post office.

Originally I was thinking of doing the 42 cent custom zazzle stamp and the .59 wedding heart stamp on the invite envelope, and using the .42 cent wedding heart stamp on the response envelope.

But then I thought maybe of doing both wedding heart stamps on the outside envelope, and then using the custom zazzle stamp on the response card envelope.

Which way do you think I should do? I know many people don't notice the stamp, so some might think this is a silly post. But I think the custom postage is cute and wanted to use it. In the end I know it won't matter where the heck the postage ends up going, but I figured I'd ask around to see what most people think.

Thanks!

dont you want the guests to see the stamps, or some might want to keep them? i would put the zazzle one on the actual invitation not the response envelope...i did zazzle for my e-party invites and they were a hit...why dont you just but the $1.00 stamp from zazzle.