Fumbling for CDs. Scolding kids. Trimming nose hairs. Weaving all over the road at various speeds. You've probably seen them all, too (well, maybe not the nose activity, but consider yourself lucky).
Unless there's an accident, or a cop is eagle-eyed or very bored, drivers get away with all these. Come July 1, however, you can be fined for using a cell phone without a hands-free device. And, if you're younger than 18, you're prohibited from using any cell phone, pager or laptop while driving -- lots of luck (and citation opportunities) there.