How to remotely show prospective tenants cheaply?

[John S.]

I bought an apt rental property but will be remote when the tenants move out. How do I show prospective new tenants the apt without incurring the 6-8% fee that realtors charge for leasing out an apt?

I'm leasing it for $1.5k (and the margin is low), so the fee is relatively high for the little amount of work the person will be doing - essentially just unlocking and locking the door. I have the contracts already made and know how to post the ad on craigslist. In short, I just want someone reliable to be there to open the door for prospective tenants. Any suggestions?

Note: I'm going to provide the current tenants an incentive to show the place while they're still residing in the apt, but in case that plan doesn't work out, what other low cost alternatives do I have?