I've never trimmed my eyebrows or the hair on my arms, legs, etc. I don't even cut my hair that often, maybe once every 2 months. I also don't use product in my hair. I just don't care that much about how I look. Not really trying impress anyone.
I wear black t-shirts, dark flannel shirts, skinny jeans, skate shoes, etc. I like bland, boring, muted colors when it comes to clothing. I'm a minimalist. Everything in my closet matches with eachother. That being said, I dress mostly for comfort rather than style.
I can "clean up nice" when I feel like it. I keep my beard trimmed nice, shower daily, wash my clothes regularly, etc. I'm no slob, but I tend to dress like your average "metalhead" when I'm not at work, or a house party or spending the evening at a resturant with family/friends. During those occasions I dress real sharp (AKA wearing a button-up, chinos, and dress shoes).