We like alternatives to cars (walking, cycling, public transportation), so we are always looking for ways to make them more convenient and attractive. A good example of that is the Transtrap. The device itself is not particularly green, but it makes using crowded public transportation easier and more comfortable, so the end result is quite eco-friendly. Another item that in itself might not be particularly green but can make life without a car easier (for cyclists, in this case) is this windscreen by Louis Garneau (a famous Canadian cyclist and cyclewear maker, also famous for putting his arm around Elizabeth II). "This clear polycarbonate windscreen installs quickly and easily with Velcro to most helmets on the market. Helmet not included. Made in Canada." Some people might prefer traditional glasses, but this probably would give better visibility and protection.