The other day I happened upon a mention of alkanes, alkenes & alkynes, and I was very excited to find them again. So I looked in my textbook (my previous school closed, so I got to keep a chem textbook and a bio textbook) and discovered that... they are really complicated! You forget very easily when you haven't taken it for a while. I hope I come across them again this year.
Nerd transmission over. =P