This Dollar

I just found this dollar folded into a tiny square in the pocket of a pair of shorts I haven't worn since last summer. 

A dollar isn't much, but it is a dollar more than I thought I had. Had I never found it I wouldn't have missed it. Now the question is: What to do with it?

I could put it with the rest of my dollars in my wallet and spend it without a thought. 

I could put it in the cup I keep for those who call me for emergency assistance.

I could buy something for someoneto brighten   their day. 

I could try to buy something and sell it for more to make a prophet. 

This is a bonus dollar; an unexpected dollar. 

What do you think I should do with it? 

Comment below.