Casting and lubing bullets,,I gave that up some years ago. I just by them now in that form.
I save & accumulate scrap lead (and brass) still. I sell that and figure it helps bring down the cost somewhere but I don't really worry about it.
Next is having a case stick in a FL sizing die and the rim pull off.
Just a simple mis-q by me,,not enough case lube.
It's a simple process to remove, I've done enough of them!, but it kinda spoils the reloading session. Kinda like a flat tire on that nice summer evening drive.
I don't load anywhere near the # of rds many of you do,,the many 100's or 1000's of rds in one caliber at a time.
So if I do have to anneal cases or trim them it;s just a few and not a real chore.
I still use scoops for powder measuring but do check them against a scale.
On the shotgun side I use a progressive MEC in 12ga, If that decides to dump a load of shot or powder on an open station (in attention by me!),,that can usually end the night of fun.
Other than that, it's pretty smooth running hobby. Sometimes finding stuff like that set of dies you haven't used in a while or that odd size shell holder can be a challenge.
Especially if you use the 'separate stacks of stuff' arrangement like I seem to do to keep things in order.
It's all (supposed to be) fun!