Ok, my husband bikes to and from work everyday, even in the winter. It saves a load of money on transportation, and helps him stay fit and feeling well. One area of our expences we never scrimp on is his biking gear. He suggests that you wear several layers when biking. Wearing a few different shirts will help with the sweating, keeping it away from your body, but also allow you the option to take some off. Undershirts from the brand Odlo are really good. He also suggests a Gore Tex Jacket. He stopped wearing his ski jacket when riding after he got the Gore Tex, so just to show you it helps with the chills. As far as eye gear goes, he says its helpful expecially if its stormey or windy. He suggested from adidas, or oklay, but he uses just normal sports sunglasses.

You can always message me if you want more info, but thats what he suggests.