Roger, I faced that dilemma too (the fujibro paper I used seemed thin) and I used labels for the back to stiffen it up. As far as I can tell, that worked (no one's mentioned any mangled cards yet). I just received Lori's card in the mail that is 5x7 paper and it's in great shape.

As for the postcards received today...

Lori's unrestored Willys Wagon -- the gleaming chrome and broken window really draw the eye to/from the black corner of the window. Good luck with the restoration!

Darwin's Old Woman Road -- beautifully printed, makes me wonder what Old Man Road looks like...

Slumry's Trillium -- absolutely stunning, love the light and dark tones.

Mick Fagan's wheat silos -- there's nothing I don't like about this print, great DOF, great range of tones, love the clouds... reminds me of home, although our silos are a little different looking.