I will be starting my first year of college very soon, and currently my goal is to use only a bike to get there. I am just trying to get myself prepped, figure out the things I absolutely need. Physically I am prepared, the ride is only about 19 miles roundtrip.

What do you wear during your ride to work when it is around 75 degrees?
Can you think of anything I definitely need?

I am planning on buying 2 locks, probably fenders, spd pedals/sneakers.
Thanks for the help guys!