So just reading the PHB and coming across a couple things that seems strange and wanted to see what little things other people are finding and talk about them.
Lance, if you have the Dual Wielder feat you can use two of them at the same time while mounted.
Area effect spells, under targeting section "If you are in the area effect of a spell you cast, you CAN target yourself." so sleep, fireball, any AoE spell you want to drop with yourself in the effect you don't hurt yourself as the caster by default.
So anything else minor that you all are noticing that might not deserve a whole thread to talk about but interesting enough to mention.
Lance, if you have the Dual Wielder feat you can use two of them at the same time while mounted.
Area effect spells, under targeting section "If you are in the area effect of a spell you cast, you CAN target yourself." so sleep, fireball, any AoE spell you want to drop with yourself in the effect you don't hurt yourself as the caster by default.
So anything else minor that you all are noticing that might not deserve a whole thread to talk about but interesting enough to mention.