Running Gear

I need gear: I need real running shoes (this weekend), good socks (soon), a watch (in the future), a different kind of phone holder (I don't want to over-stress my tender shoulders), jogging pants (I only have yoga pants, not cool). I don't know how much clothes to wear now that the temperatures are dropping. What to do about rain, and god forbid, snow. Is it possible to train at night? And now that I'm trying to run a mile, I don't have to worry about water or food, but someday I will. And they say running is not an expensive sport...