Do your bobby pins stay right where you put them or do they inevitably slide out throughout the day... ain't no-one got time for that.
To get them to hold better spray them with hairspray before putting them in to your style for some extra hold. Doing this will transform them from bobby pins to sticky pins.
If you don't want to spray them individually you can place your bobby ins on a paper towel, spray, shake out the towel & pin away.
To read more about bobby pins & how to effectively use them click here.
Cheers - Hal