Last Minute Summer Crops

I've be getting reacquainted with the garden and gardening and enjoyed success with chard, spinach and blueberries.  This success has motivated me to get a small summer crop of beets, broccoli raab, carrots, cucumber, (more) spinach and some squashes.  I'm gonna use up what remaining old seed packs I have and will sow much more dense than usual in anticipation of poor germination.  I also placed a Johnny's order tonight for some fresh seeds.