Trying out an idea and thought I'd kick it around with you guys to see if there are better approaches or unforeseen problems with it.
When I started my fort, I decided to set up a "Distrustful" uniform, assigned a squad to that uniform, and put my starting 7 to it. It just told everybody to carry around a weapon.
As my fortress grew, I added anyone with valuable skills to that squad, while also creating a military. This later made it really easy to use the Squad menu in Therapist to sort my useful dwarves from my haulers and immigrants.
At some point, I pulled my miners out and put them in their own squad, giving them a new uniform that includes complete leather armor and picks, and then did the same for my wood cutters and their axes. Again, this is distinct from my actual military, so I've been thinking of these groups as "militia" or "reservists," and it's just meant to make sure they're all always carrying a weapon with them and are lightly armored.
At this point, I'm looking at the Distrustful uniform and wondering if it's still all that useful. There are other methods of sorting in Therapist (I used to give nicknames to any non-haulers, for example), and thinking about trying some advanced settings for the military screen. For example, telling one dwarf per reservist to train at a time. However, when I try this, the entire squad seems to train. Should I just station one-per-squad in the Danger Room? Are there other problems I haven't thought about?
If I had at least two dwarves per job, I'd consider making A-squads and B-squads, and then putting them on an alternating training regiment, just because I like the notion of a militant dwarven society. But I'm nowhere near there yet.