I have a calling service...I pay them $60/mo to get me work, but of course, it's not guaranteed. I had been in the "inactive" file for months, because I owed $170 & couldn't pay it. So yesterday, I mailed off a check for $170 & asked to be placed back in the "active" file. They called me today, thanked me for my payment, & asked me to call them back with my availability....basically, you call & tell them days you are NOT available, & they assume you are available all other days (which has gotten me in trouble in the past, when I have forgotten to call them....I could always count on it...if I was available to work they never called...if I had plans one day & forgot to call them, they called & offered me work!). So I called them & told them a couple of days that I was not available, & they notated it in the pc. No more than 15 minutes later (maybe less), they called & said I was booked for tomorrow, 18 to play younger. :-)
But I know better than to get TOO excited....for about a 2 month period, I was available almost EVERY day & was luck to get 1-2 days of work a MONTH. It really just flucuates.
But I am always grateful to get ANY work at all! :-)