Prep like you’re disposing of a body put down a plastic sheet or newspapers, lots of bin bags for the left over material, old clothes or Aprons.
Draw what you want to do on first in sharpie, so you have something to follow.
Take the top off first and scoop out seeds and stuff before you carve
Serrated blade on my SAK does a better job than a really sharp knife (which is more likely to cut your now slippery pumpkin pulp covered fingers).
There’s no point if you don’t put a couple of tealights inside.
Make sure you dispose of them within 24 hrs, they will start to rot fast (if you’re smart and have the energy you’ll clean them off as soon as the kids go to bed, chop down into chunks and freeze to use in soups later).