Death to my A/C

My air conditioner has to decided to crap out once again. The repair man was just out, what 2 weeks ago? As of yesterday we have been living with out our beloved appliance. And today it is over 100 degrees..He will be here tomorrow between 10 and 12pm and this time he should just give us a new one..it was doing the same thing it was before after he 'fixed' it..he filled it with freon(sp?) and off he went. I keep everything closed up and right now its 'tolerable'..probably only because Jack and I just rinsed off in a cold shower.. I am making chicken enchiladas for supper and I am dreading to turn on the hot pot and cook. I hate hot. I hate it.