The previously mentioned Pickpocketing skill is like fishing or chess in that it requires training, so might be worth getting some work in on that. If it's used for Halloween again, it'll probably require at least a bit of skill to succeed.
For some recent stuff worth looking into, you might want to check out the changes involving Mikhail, Sato, and Andrea. They're all ways to use up items that might be cluttering your inventory. Mikhail lets you turn in some fish for a few credits once per day, including stuff that's usually not worth making sushi from. Sato can be worth a bunch of credits. He takes a number of things on a rotating basis, but a lot of them just require ballistic plastic or hardened plastic plus a few armory components. And if you run out of hardened plastic, you can still make a net profit buying and salvaging plastic figurines for it. With Andrea, you can turn items directly into Will XP and potentially limnology videos, which grant Perception XP, a technique, and some quest recipes.
If you want to catch up on any unearthly items, I'd recommend the Eye for Bugs skill. Once you turn it on, as long as you have some bug cages available you'll over time passively accrue a collection of bugs with some useful buffs. The rarer ones might take a little actual effort, using the bug net and such, but once the skill is worked up a bit you should be able to get the 'normal' ones on a fairly regular basis.