My dad always told me that the worst thing people can tell you is "no" when you ask for things (this applies to jobs, prices, auditions....really anything). I was reminded today.
I set up an appointment for an exterminator to come out and do a yearly spray for bugs some time ago. They are the same people we used last year, and we found them through a deal on LivingSocial. I was hoping to see another deal from them this year, but so far, no dice. However, after I set up the appointment, a deal came up for another extermination company (for about $20 cheaper than our exterminator's normal price).
I hemmed and hawed about calling up the exterminator we were already using to ask them to match the price. I shouldn't have worried. They called me up just this morning to ask if they could come at a different time. I used that phone call (and my willingness to be flexible) to ask them (very politely) about matching the deal. The answer? "Sure! Why not?"
And that, friends, is why it never hurts to ask.