Perhaps your local public library has a 'tool lending' option. If so,
borrow bolt cutters.

Toller wrote:
I bought a boat and trailer last spring. Yesterday I was checking the tire
pressure before taking the boat out for the winter when I realized the spare
tire was padlocked on and I don't have a key. That could be embarrassing.

It is a laminated steel padlock. Do I beat it with a sledge hammer until it
gives way. saw it with a sawsall and metal blade, or must I use a hacksaw?
Any other suggestions? (don't have boltcutters...)