I love to use post it flags when I am going through my cookbooks. I simply use a different color for the recipes I want to try first in the different sections and find it very easy to try the recipes I thought were interesting without having to go through the whole cookbook again. Pink for dessert etc. ;)
I really like the post-it flags. I think they make it alot easier when you are studying or taking an open book test if you have a certain color flag for the different material.
I first tried these when I was in college, about a year ago, and fell in love. I used them to flag pages and passages on the page. I then started using them to flag recipes in cook books, and to highlight important items on to-do lists. They are clear so I could see the important item to get done, and add other info on the flag with a ball point pen if needed. I can't live without flags.
Flags are the greatest for cookbooks. My husbands favorites are blue, mine pink, green for party favorites, yellow for special occasion meals. Combinations are too numerable to mention.
When I was student teaching for middle school music, I would sometimes have trouble remembering certain cues in the music score. I went and picked up a pack of the small flags to 'highlight' certain trouble spots I had in the music and they worked great. It was one of the best finds I've had in a long time. The only thing I wished is that they came just a tad shorter because I would sometimes have to trim off the ends so that it fit in the score without covering anything else.
page markers are great! I used the 1/2 inch. I also use these to mark where our clients need to sign their applications for their insurance policies! They never miss a signature when I use these!