I've investigated and I spend about $500 a month on transportation (public transit, gas, Ubers). This is about 7% of my net monthly income. It's not terrible considering the amount of ground I cover, but I am very interested in starting to bike a lot more, and to get this number down (as well as walk more and lose some weight). The temperature is getting colder in my area, and this is the time I start to rely on the occasional taxi more and opt for the train ride instead of the bike.
Is anyone interested in this or want to change the amount or percentage?