Grocery Cart Tablet Holder Mk3

My previous tablet holder worked great (and people kept asking me where they could buy one while they waited behind me in line at the grocery store), but it eventually warped a bit in a hot car and then broke. So I decided to make a few improvements:

- It's wider for a better more secure balance
- The two legs come together for a better grip
- A cut-out for my iPad's home button

Set this atop your grocery cart (it should fit over almost any cart in some way or other) and set your table