It's mostly things like jackets and vests and the like that I have issues with when I have to line them. I tend not to make skirts or pants. I'm working on a coat right now, and the pattern did have all the instructions to line it. I've been trying to make sure I sew more consistently cause sometimes i try to do things fast (not cutting corners or anything, just trying to do things faster.) and end up messing things up.
However, the first jacket I made had very different instructions on how to line, so that kind of threw me off. I think i've figured out what to do to fix my current predicament on my coat.
But anyone else has tips please post them! Lining is such a mysterious thing, y'know.