THREE RHYMING RIDDLES

1)
Sometimes high and sometimes low,
I may creep between your toes;
My orders come from the sky above,
My master is often linked with love.

2)
What Spanish instrument's familiar name
And fisher's occupation are the same?

3)
I live on a busy street
Where busy people meet and greet;
You may visit for an hour or two,
But if you don't pay rent, I'll tell on you. 


Answers:

1. The tide
2. Castanet 
3. Parking meter