Backstage
ArboristSite Operative
Definitely something to not getting oil on your vehicle floor. The ones I have act like an oil pan and catch the mess they make after cutting.I've only recently started using a scabbard, and I'm not sure it's worth the hassle.
Case, no. I could see using one in certain situations, but it'd be to protect whatever vehicle is carrying the saw, not protect the saw. Keep bar oil out of a car trunk or something like that.