Huge fan of tagging, and using of photos. I like photos because I can quickly scan through and know what I'm looking at. Search is nice, but I tend to split my recipes into niche notebooks over excessive tagging, so I have a cooking notebook, a baking notebook, summer cookout, and so on. I tend to tag based on the type of meal, casserole, cookies, comfort food, than ingredients, because that's usually how I decide what I want to make. If I've collected a lot of recipes in a given week, I'll sort of merge the ingredients list into a shopping list so that I'm set for weak ahead.