Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

Is a handsfree kit really expensive?

Handsfree is cheap, but ineffective. The greater problem with phoning while driving is not the physical act of holding the handset, but the mental distraction of trying to hold a conversation with a distant party.

The only evidence needed is common sense

Epic fail of the day. Common sense is wrong far too often to be relied on for making public policy, even if it right often enough to guide personal behaviour.