I have fine, thin hair. So most of what's out on the market doesn't work for me. Barrettes and clips just slide out. A few years ago I found a clip called Xenclip. It looks like a spring but it holds my hair in place. I can even sleep in it. Trips to the dentist are easy now. I don't have to take out my hair clip to lay back in the dental chair. I put my hair up in the morning and I take the clip out at bedtime. I brush my hair like I would for a ponytail then make a bun style and clip it into place. I'm done for the day.