There's more than cows and tractors in barns. Actually, there are infrequently cows in barns; they live in the fields. Barns are typically used to store hay, feed, seed, and tools, such as tractors and their implements, and to provide a dry area for working on equipment and for storing maintenance fluids for that equipment, such as oil and grease.
Saving because I want to know, too. I've been putting it off because I don't know how hard it's going to be to migrate all the logins and shit that use my Gmail account.
Or both! My first job out of college was at a bank and we used both, and yep, all male bosses had pants that looked like this.