It's no secret I'm, at best, a mediocre soccer player. I get my practice in playing pickup on the weekends, but to improve at something, you need more than a couple hours once a week. Fortunately, there's the internet, and specifically Becoming Elite. Matt has a collection of 100 solo drills that I've found incredibly helpful to increase some of my basic skills. However, I can't watch a youtube video every time I find myself at the park with a ball and a few free minutes, so I built a small web page that lists all 100 of the drills with intructions and diagrams. You can also randomly see a drill for variety.
Go to danielboyle.net/100drills add it to your phone's home screen, and enjoy.