Maybe it's time to think outside that box. Try something different.
Print out several copies of that resume. You did polish it, right? Place them in a file so they stay nice and neat. Pulling a crumbled piece of paper from your pocket impresses no one.
Go online and make a list of all the companies in your area where you'd like to work. Get directions if you need them.
Dress professionally. No jeans, sneakers, or t-shirts. Wear a suit, dress pants and shirt, tie. Dress to impress.
Get in the car and walk that resume into every business where you'd like to work.
"Hi, I don't know if you're hiring right now, but I'd like to drop off my resume in case something opens up."
If they are hiring, ask if there's someone you can talk to. Some businesses will give you an interview on the spot so be prepared.
Do not go on Mondays.
Monday at most businesses is the busiest day of the week. The chance that you'll snag an on-the-spot interview is low. Also, forget about Fridays. On a Friday people are looking forward to the weekend and that all important person you'll need to meet, might be ducking out early.