Another die that I got bundled with my cutter purchase was the value die which has a 4 1/2″ square as well as a 2″ square and an HST cut all on the same board.
I use it for putting kids’ names on things mostly. I tend to use raw edge applique with fusible web and I have put names on backpacks, quilts and reading pillows.
I have a number of Strip Cutter Dies for cutting fabric strips and I love them. The one I use most often is the 2.5″ Strip Die which I use for cutting my binding strips.
Each Blue Wren die comes with a cover and a cutting mat the accuquilt ones you often have to buy the cutting mat separately.