Sewing strips together

I spent last evening doing dishes, baking off flatbread, and sewing flannel strips together to make units for 9 patch blocks. I managed to get enough sewn for 25 blocks. Here they are stacked ready to be moved to the sewing machine for assembly. I laid out one block for you to see.

I need another 25 blocks in order to make this quilt 10 blocks by 12 blocks or approximately 75" x 90". I would like to get all the strips sewn together first then I will start sewing the pieces into blocks.