Advice for supplies to sell prints

I was just wondering whats a good source for print backing and bags. Ive got some ideas of things that I could sell and I want to make them as presentable as possible. should I put them in matts?

Clear bags has been good for me. Bags, backers, cards and envelopes.

but what do you use for backers, just anything? cut up boxes? I do have some sleves but its only big enough for up to 2 8x10 prints, not a backer, so hopefully the source I got them from will have something bigger.

what are the cards and envelopes for?

By "backers" do you mean something to mount your photos to? If so thenHERE is an easy way to do that.

It's self adhesive foam board, and they have tons of other photography related items.

I switched to clearbags this year and have been very pleased

whos your supplier for clearbags and how bad is the price? I think I paid $80 for 1000 bags I got last time, that are good for single 8x10 prints. I think ive used 300 so far in the last 1.5 years.

I havent really paid attention to artistic prints being sold at fairs or events so im not really sure what the proper way of doing it is. I also want to keep the price down, the one backing link from here I think was $3 each which costs more than the print itself.

I used to use ULINE but now http://www.clearbags.c​om/