Animal husbandry if you want to separate it from agriculture. Canines were domesticated very early on, way before than any livestock, and I'm sure their domestication helped with other animals.
Making fabrics and clothing from fur and leather (tanning!), and from various suitable plant materials (perhaps nettle).
I wonder when they started to make cordage. They could use various plants as is, but as with fabrics, some plants can be processed into fibers, and from fibers they could make cordage/rope.
Frankly they figured out Five C of basic self-reliance:
- cutting tools
- cordage
- cover (clothing and shelter, preserving body temperature)
- combustion devices (making fire)
- containers (not necessarily clay pots and such, but stuff like hollowed tree trunks and whatnot)
Also they did agriculture as hunter gatherers: they had a travel cycle, places they visited year round, and they saw seeds at one place (without much cultivation) and when they returned there were some consumable plants, berries, leafy "vegetables", tubers, etc.












