1998 Saturn SL2 The fan won't come on now, but it worked ye

My fan was woking yesterday as I cut on the A/C for the weather here was in the 80's. It ran OK.... but this morning it wouldn't even come on. I am not sure what the problem is... I'm a single Mom and I am guessing it's the blower motor, or a fuse.... maybe a siimiple part to be replaced??? Seeing that I worked as a Parts and Service Cashier for 3 different Dealerships and being around mechanics.... I am using some of my memory from them to troubleshoot the problem.... But would like another ones opinion.... Please Help!!!!!!!