Since retiring it’s t-shirt, jeans, hiking type work-shoes, during colder weather a hooded sweatshirt. Gets hot enough, wear shorts.
For nearly 20-years, had to wear a uniform of sorts, a mandated tie, until biz-casual dress came around, at first casual only on Friday’s. Lol, got written up once in the late-70’s when I wasn’t wearing a tie doing field engineering work being 90-degrees in the shade with 95% humidity. The CEO where I was working had a group photo taken, NONE a them had a tie on, but my boss saw the photo seeing their company newsletter with that picture of me w/o a tie. He didn’t want to write the warning, but admitted fearing his boss would see it and get on his *** about it.
How times have changed, being old enough to remember those days. Hell, guys would pick out a tie to wear to go take a dump, lol. “Honey, I have to take a dump, should I wear my striped or polka-dot tie?”