I would be hunting through my books and patterns to see what I want to make next then shop my stash to find material and cut the pieces that would fit those patterns. Failing that or if I had more time on the machine, I would cut lots of 2 1/2" width of fabrics (WOF), 5" squares and 10" squares (if they go that big). It seems that most of the patterns use the 2 1/2" WOFs or 2 1/2" squares which are easy to make if the WOF is already cut. If you like to applique, look for patterns like the teddy bear, leaves, flowers, etc. and cut enough of those to make a quilt or two or three! I wouldn't buy new material if I could help it.
Congrats on your win and I'll be looking for pictures of what you create with your goodies!