I've spent about 3 years now toting a refrigerator and I've found that most of the time if you walk in with a good attitude and stay civil, it usually gets you in and out quicker. Even when you encounter one of those clerks with a grudge against the world, usually if your friendly they become to baffled to snap at you. This doesn't work all the time but a great majority of the time it does. Also, how patient and quiet you are while awaiting a door assignment can have a great effect on how long you sit in a door and how long you wait for paperwork. Also I go in somewhat dressed from the old days, I wear a button up long or short sleeve shirt, usually with the company logo because those are tax deductible lol, jeans and boots. I know it's stupid, but I have seen guys go in in a stained t-shirt wearing flip flops and you can literally watch the clerk roll their eyes and bristle for an argument. Don't get me wrong, I sometimes wait of course, but a good amount of time I'm in and out before the guy ahead of me even gets a door. Just something to consider. Your always going to have those folks you couldn't please walking in handing them a bar of gold, but you can make things better for yourself most of the time.