I organize my recipes in two ways: 'Archive recipes' are the ones I don't make too often but want to keep. They go into a file box and are organized by main ingredient (beef, fish, pasta, etc). The recipes I make regularly stay in my kitchen. I keep them in a clear plastic sleeve and when I'm cooking, I tape the sleeve to the kitchen cabinet above my work area with the recipe facing outward so I can continuously refer to it while preparing the dish.
Here are 10 other ways I found to organize recipes: