Try making rock pots from your craftsdwarf's workshop.
I have a furniture stockpile set up in my pantries for just empty barrels and pots. When I notice it's looking a bit empty, I queue up 30 more pots or so.
I start out with one big food pile with seeds and drinks eliminated, one seeds pile, and one drinks pile. I then create separate piles when I have time and space for plants, meat/cheese/eggs, leaves/fat and little drink piles around the fort, a big prepared food pile under or above the dining room.
I have found that I prefer making stockpiles big right from the beginning, rather than trying to enlarge later, but that's probably more of a personal preference thing.
Armor: I use the default metal setup until I get enough leather and metal bars on hand to start making things like robes, cloaks, trousers, and hoods (leather) and can specify a material (like steel) for mail shirts, breastplates, leggings, etc. I leave the default armor as "over clothing," but when I create my full armor setup, I set it to "replace clothing." The military dwarves will drop clothing in both situations, I've found, but every dwarf gets 2 cabinets in their bedroom and they do put the clothes away eventually, given idle time. If I see clothes on the floor in the bedroom, I add another cabinet.
There are several topics that talk about what to use for armor and how much you can equip, something like 3 mail shirts and 4 cloaks. I don't really like going that route, personally, so what I do is:
mail shirt
breastplate
leather robe
leather cloak
metal leggings
leather trousers
metal helm
cap (metal or leather, whatever I have the most of)
leather hood
gauntlets
high boots
shield
weapon
It works well enough for me.