Rotation that doesn't make you dizzy

Rotating the crops in my garden has been trying.  I forget where I planted last season.  I try to keep track but don't keep up well enough to be useful.  Rotation of crops improves pest control, soil condition, and plant nutrition, so I want to do better.  I have devised a crop rotation system that is pretty easy and have added some of the additional things learned in Permaculture class about no-till gardening, cover crops, conserving water, controlling pests, etc.