Gardening - Onion tops

My Onion tops

Did you know onion tops can be used like scallion or chives? I found this out last year! I could believe I was wasting food! 

I have read in a few place that it helps the bulbs grow better it you use the tops. When you use the tops, the flowers won't be able to bloom. That means the plant will focus on the bulb. 

Have you ever used them? They are easy to harvest just cut them and use them like chives.