I always keep a couple 18 ft telescoping cane poles in my boat. They come in handy like today.
Casting bobbers into shallow crappies can spook them sending them into hiding. Using cane poles, you can slide right up in the heaviest cover, drop the jig into little pockets that would be impossible with bobbers.
Another advantage is you can dangle a jig right in front of them without causing a splash. This is a more natural presentation that triggers some of the pickiest fish into biting!
If you like spring panfish, I highly recommend keeping one in your boat for 25.00. Not to mention, that they are an absolute blast to lift out of the water and swing them into the boat from 20 ft away!