Answer:
Thanks for such treasures as Mariachis, enchiladas and habanero!
Securing your documents is easy with these trusty metal objects
What has one head, one foot, and four legs?
Nothing specific, but more than a few. This many clustered, together will do.
Dry though I may be, I am still a sea.
You can always see it, but it's too far away to touch. Mountains rest on it, and at sea it surrounds you. What is it?