When I work for my dad it's jeans and t-shirts; the older the better. Lots of equipment, dust, grease, etc to get you pretty dirty, but for safety reasons, must wear pants rather than shorts, and short sleeves rather than tank tops, even though the shop has no A/C (yeah summers working for him are fun...) If I'm just doing office work for him though, anything goes
This summer (and will be a couple weekends this fall, winter break, spring break, etc), I worked retail, in a department store. The store transitioned to a different this summer, so the dress code changed right before I came back to school. When I started working there it was business casual, I guess. Basically the only thing enforced was no jeans and no super casual shirts. That being said I was always in black pants and a decent top (polo type or something else nice). Under the new dress code men must wear suits and ties, and women must wear either black pants or a black skirt. If you're wearing black pants you must wear a black blazer. If you're wearing a black skirt you can wear either a black sweater (cardigan type) or black blazer. I believe you have to wear black shoes too. You can wear any color shirt under the blazer or sweater though, thankfully. The day the dress code changed we all joked that we were going to the funeral of the old store. And yes, we have to wear blazers in the middle of the summer, despite the aging, and well...crappy, air conditioning system
