I cannot make up my mind about what size I want to print the layouts my sister sent. She's heavily into digi scrapping, too and made some beautiful layouts of her family. I want to put all of her layouts into an album. I do all my layouts in 12"x12" but think that I'd probably like to go a bit smaller with her layouts simply for money reasons. Now I'm torn between printing her layouts in 6"x6" or 8"x8." I'm kind of feeling that the 6" square is quite a bit small, but it would be a whole lot cheaper to print (in a photo lab). On the other hand I think that 8"x8" is a very nice size, not too big but big enough to show small details and, very importantly, journaling. However, it's a bit more expensive to have 8" squares printed, might as well go with 10". I don't know what to do.

I've never seen a print smaller than my 12"x12" so I have no clue.
I need your opinions, pleeeeeeze.
PS. All my sister's layouts are 18 cm squares with is about 2126x2126.