Shower before you leave for work with a strong deodrant soap, wear wicking under garments and bring your clothes. Get to work before the majority of your co-workers and use the bathroom to wipe yourself off. I wear my professional clothes at work. I would not wear my expensive clothes on the bike due to possible wear and tear (falling, dog, etc.) Purchase a trunk jjfor your bikek to carry stuff.

Gas, .69 cents the price of a can of beans.