The Paper Arts site talks about everything related to paper including stationery, scrapbooking, and DIY paper projects.

A great way to build up your supply of nice papers on hand is to watch for companies that sell “scrap packs“, which are just loose collections of different single sheets of paper. Often, the companies put color themed packs together from opened reams or stock that they are discontinuing. You will often find these at physical paper stores, but some online ones like Paper Mojo also sell them occasionally.

They currently are running a few specials on scrap packs with a potpourri of 7 different beautiful papers (with 2 of each sheet) in different color schemes. I picked out the blue-green “Caribbean Collection” paper pack to show above. As you can see, there is a good mix of textures and prints in each pack. Each paper sheet is approximately 10″ x 7″. They have a limited supply of each pack, I think they start with around 30 of each pack though many are selling out due to popularity.

Scrap Packs - $4.75 / 14 sheets
available at Paper Mojo.com