In the morning it's usually my pjs or a t shirt, depending on what I wear to bed the night before. It's usually still dark (4:30am) when I first go out to open the pop doors on the coops, so the neighbors can't see. I have an old pr of crocks that I keep by the back door and just slip on and off and leave on the rug just inside the door. DH bought me a boot scraper that I keep just outside the chicken coop so I can clean my shoes/boots before I head for the house.
Just before I leave for work I usually wear the shoes I'm wearing to work. I don't go all the way into the coop or run, just the storage area where I keep the food.
After work I try to change into jeans before I go out, but sometimes I just wear what I wore to work. I'm not usually very dressy, and everything I own is machine washable, so not a big deal. I do have rubber boots that I wear when the weather is bad and DH bought me a nice pair of Carharts to wear in the winter.
I don't always wear gloves when I'm cleaning the coops and I don't wear a mask. I guess I should so I don't catch the epozootie! I just wash up real well before I do anything else. I got over being grossed out about too much after raising 2 kids who loved to get dirty and play with bugs and critters!