Put a lid on it! Here's a great idea: Free or low-cost helmets for rental bikes

This is pretty nifty: In Philadelphia, Uber is offering bike helmets delivered directly to your balding head for just $10.  It's a promotion for Philly's new city bike service, Indego. That's a $79 Nutcase helmet for less than it would cost a bike courier to deliver it across town in a filthy Bailyworks bag on a hipster fixie -- and the proceeds go to Bicycle Coalition of Greater Philly. Uber goes double-whammy here, by not only providing and delivering the helmets, but by matching the $10 donation to the Bicycle Coalition. Sig Heil!,...  I mean,  Good on ya,  Uber!