I make an attempt at least once a month, but half the time the attempt fails due to lack of bookings.  My basic requirement to make a trip is that I must have 1 person per day.  So in the case of a Monday/Tuesday... I would need 2 people.  Sometimes I get it (I have a couple of regs out there) and sometimes I don't.  I can see about trying an end of week trip that way rather than a beginning--- but not this month.  
Mt. Pleasant would pretty much have to be an outcall situation.  Longview is a no go at the current moment, its simply too hot for my taste.  However, I will be looking at Tyler and Texarkana in the near future as well, so I will be closer