I agree:cardboard would be a waste for the small photos. The larger ones I do send cardboard. I would advise realizing that some will get damaged anyway, this just helps.

BossC

I send 6x4s in just a paper envelope and they are pretty much always fine.

I would love to start this hobby. I've gathered different sizes of pictures, envelopes, etc. Though, I have one question.

Should I cardboard 4x6 photos or do you think it's a waste of weight and space? They're pretty much in small envelopes. Though, careless postman could bend it. What do you think? Do you guys cardboard your small pictures?

8x10 is a different story, I tend to put some in there.

Thanks!!