5. Check vacation rentals and make an offer
You should also ask if you can take out a long-term lease on that "vacation rental" property posted online.

With more vacationers staying home, it's hardly uncommon these days for owners to feel a little desperate. Suzanne Wergeland, a Houston-based oil and gas insurance broker whose vacation rental in Costa Rica is advertised only for nightly rentals, would nonetheless take a monthly or yearly rental at a third of the low-season rent. "Because of the economy, we need to sell the house," Wergeland says. "If we don't sell it, then the next best thing would be to have long-term renters."

In other words, don't think the advertised rates are it. Pitch yourself, and make an offer. It never hurts to ask.

"You can rent a gorgeous home that you might never be able to buy," says Magan Hunt, who does marketing for Wergeland. "But you can rent it for much less." 

6. Get someone else to do the grunt work
Ortiz, of the Apartment People, says his brokerage is bombarded by renters tired of bumping up against apparent scam artists, or making appointments with landlords who don't show up for appointments or have misrepresented the property. Professional brokers and property managers screen properties and arrange viewings. And except for in a few cities – primarily in the Northeast – the tenant does not pay extra to use a broker; the property owner pays the fee for finding a tenant, typically about one month's rent.

"Why not have someone else do all the dirty work?" Ortiz says. "All you have to do is sit back, relax and have someone drive you to all the apartments."

A common misperception is that tenants will still be charged more because a professional will set the rent higher, since he may be taking a monthly percentage as a maintenance fee. But representatives of the National Association of Residential Property Managers say this is not so; brokers need to rent the property, and to do so must list it at or below market rent.

Furthermore, Ortiz says that brokers are able to negotiate on behalf of the tenant, getting the owner to agree to allow a dog or a smaller security deposit, for example.

And perhaps the biggest benefit? A lot of the pros post only a small number of their listings on general sites. It helps draw traffic to their broker sites, but they may not have time to post all the listings, nor may they want to. The Apartment People, for example, puts only 10% of its apartments on Craigslist.

"And that could take a week," Ortiz says, "so they're missing all the new listings. We get hundreds of listings a day."

7. Stop by the neighborhood laundry and coffee shops
Dozens of Web sites list apartments, but those with a national reach at this point predominantly list only large apartment complexes.

However, some sites may be gaining ground locally. ShowMeTheRent.com, for example, has thousands of listings for Michigan, where the site began. Search the Internet for "apartments" and your town name to find local listing companies.

Other landlords keep it local as they always have – posting at the church, coffee shop or chamber of commerce or in area newspapers or bulletins.

Dana Schultze, a merchandising manager at Gifts.com, walked the neighborhood where she wanted to move and found an old, family-run leasing business. "A lot of times they get first dibs, because obviously people in the neighborhood want to help their neighbors before some big fancy real-estate company," Schultze says.

Home affordability calculator

The agent got her a beautiful, large one-bedroom with period details on a tree-lined street in Brooklyn for $200 less than the advertised rent.

"There's no way that we would have found this place if it wasn't for this woman," Schultze says. Besides, the agent told her that she and others post listings on general online sites only for units they're not able to rent out otherwise.

8. Crash a meeting of property owners
Yes, this is a real strategy.

Adam Baker, a freelance writer who once owned a property management company in Indianapolis, said that prospective tenants used to show up at a monthly meeting of property owners and tell the room about themselves – the perfect tenants in search of a rental.

"There would be a swarm of people at a landlord meeting who would want a tenant who was brave enough to come in and pitch themselves like that," Baker says. "As a tenant, it's all about selling the positives of your situation."