Bag Bus Rapidshare I Need A Good Tote Bag For Commuting On Bus...?

I need a good tote bag for commuting on bus...? - bag bus rapidshare

I recently (starting with the bus to work because of gas prices!). My luggage normal back their accountants during my walks to and from the bus stop. However, fit well on my lap while driving. I work in a professional office, you must unprofessional. Suggestions for a bag (a) will not hurt your back, (b) is easy to transport, if necessary, (c), falls into my lap for a bus ride, and (d) look good?