Do this as needed to keep plenty of air moving through the trailer.  Horses release a lot of heat and moisture as they breathe. Exhaust fumes and ammonia can build up in a closed trailer, causing respiratory distress for the horse. Places to check include doors, wheels, and the hitch. Make sure nothing is amiss and no tools, lead ropes, etc. have been left on the ground or trailer fenders, or are leaning on the trailer. Take corners, accelerate, and stop slowly and smoothly. Remember that the horse is standing up, trying to keep its balance.  Practice driving the trailer before you try with a horse loaded. Get used to taking turns slowly and changing lanes gradually. Your horse needs time to rest and unlock its legs.  Stop at least every 3-4 hours. Do not remove the horse from the trailer. Park in the shade. Give the horse some water. Check for injuries and make sure the trailer is still in good condition.
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One-sentence summary -- Open air vents on windows and doors. Do one last check. Drive gently! Take frequent breaks on long trips.

Article: These shears are very versatile, and are able to cut about 40-70% of hair off in a few quick cuts.  They can be used to add a level of texture, or naturally blend different levels of your hair.  There are generally 25 teeth on this particular type of shear. If you have especially thick hair to cut, these are great.  However, they can be difficult to use and leave holes in the cut, so only use them for very thick hair. They can take big chunks out at once (40-80%), and can cut through thicker hair than a standard pair of shears.  These even work best with curly hair, which is hard to cut with normal scissors.  These shears have about 7-15 teeth on them. They remove much less hair than the other two pairs of shears.  This is a great pair of shears to go back over your hair after you have already made a pass with the standard shears.  They give your hair a softer, lived in look.  However, you will have to make more passes with these shears, as they take so little off. Most, if not all shears, are stainless steel.  However, shears with an adjustable screw can make all the difference in the world.  If you find that the tension is off, then the screw allows you to adjust it.
Question: What is a summary of what this article is about?
Buy a pair of blending and texturizing shears. Add chunking shears to your array of scissors. Get a pair of finishing shears. Find shears with adjustable screws.