What do you guys keep your large snakes in when you travel with them? I brought my 7' burm to an expo for show a couple weekends ago and I was able to get him into the largest snake bag I have but it I can tell it's getting too small. I have heard of people using pillow cases (actually the table across from me packed their 18' burm into a pillowcase) and I am assuming these are breathable just like cloth bags? Do you guys use Pillow cases or Tubs? I have a large tub that I use to hold him while I clean him that could easily hold a 12-15 ft snake. I drilled holes into the sides for air. I am assuming this would be necessary to have if I travel with a snake in a large tub too, correct?