I wear a Tank or Tee and shorts and flip flops most of the time. If it's really cold (like 55* in So Cal) I wear sweats to cover my shoes to keep the chips out of them. If I'm cutting steel (hot chips) I move out of the path when taking a pass and my arms are used to the occasional "hot missile". I bought a pair of Crocs for the shop, but they're chip magnets so I took them in the house.
Throughout the day, I monitor the chips on the machines with a shop vac and blow all of the floor chips to the wall of or one corner until the end of the day where I clean them up with my magnetic wan and a broom. I haven't invented an aluminum boom yet, but I made something that works pretty good by covering my magnetic wand with a cheap micro cloth (HF). They seem to have an attraction to the chips.
I change my shoes when I enter and exit the shop and blow myself off with compressed air to keep everything out of the house. For the most part, the wife never catches much, and she's a vacuum nut.