Does anyone know how strict Spirit Airlines is on their baggage allowance? Their website says one carry on (which looks to be a small one) and the checked bags had small dimensions!! I am a single mom traveling w/ my young daughter. So was hoping to fit the majority of our "stuff" into one big mama suitcase. If I can keep it under the 70lbs! Hahaa. But they say no more than 62" inches of all together dimensions (L+W+H)! That seems so small!! Has anyone ever been nailed on baggage allowance? I know they can slam a $50 charge on you if it is too heavy.