The W3C checklist is, quite frankly, one of the most complicated things I’ve ever come across. At first glance they seem simple, dig a little deeper and you will find yourself lost in a sea of text -
WCAG 2.0 checklistWebAIM to the rescue: they’ve created a simplified version of the list, it covers all the checkpoints, but they are grouped and reworded to make it easier to understand and implement -
WebAIM's WCAG 2.0 checklist