I always pick up money I find in my journeys. I have found 5cents already today! I have found a few $10 & $20s over the years too, its very exciting. I like to save my 'found money' for travel (along with money I win from contests too).
Here we also have deposits on bottle returns, so my kids pick up bottles & donate the money every few months to a children's charity that has helped my son in the past.
A couple quotes that have stuck with me from years ago are: Suze Ormond - 'If you disrespect money, it will disrespect you' Then she went on to talk about picking up pennies you find on the ground.
Oprah said years ago on her show 'if you worry about money, you will have money problems'. I try not to let money consume my thoughts. A positive attitude in life helps too.