Today's problem description: https://adventofcode.com/2020/day/18

Join the Tildes private leaderboard! You can do that on this page, by entering join code 730956-de85ce0c.

Please post your solutions in your own top-level comment. Here's a template you can copy-paste into your comment to format it nicely, with the code collapsed by default inside an expandable section with syntax highlighting (you can replace python with any of the "short names" listed in this page of supported languages):

<details>
<summary>Part 1</summary>

```python
Your code here.
```

</details>

This is a recurring post to discuss programming or other technical projects that we've been working on. Tell us about one of your recent projects, either at work or personal projects. What's interesting about it? Are you having trouble with anything?

When you click in a tag in a tildes group, you see the topics that have been posted in that group with that tag according to your filters. There's also a link to go back to normal viewing. I think an option to see that tag in all groups would be a neat addition, even if not particularly important. Thoughts?

I just caught part of one of the newer Terminator movies as I was flicking through channels on TV, and I was only able to identify it because a scene with a visibly 60-plus Arnold Schwarzenegger made me realize he probably hasn't acted in a decade and a half otherwise. I've never seen any of the Terminator movies... a fact which never fails to elicit shocked responses in movie conversations. I've also never watched any of the Alien, Indiana Jones, or Harry Potter franchises, am yet to watch any of the Shreks (despite one of my exes quoting them all the time and telling me she basically learned most of her life lessons from them), nor any of the Toy Story movies. I think the only Pixar movie I've ever watched is Up. I do mix up Pixar and Dreamworks all the time, so that whole debate between the two goes over my head, but I know I've never found Nemo or seen Frozen, or practically any of the others.

Obviously this is most egregious for stuff that's been released during your lifetime, or maybe adulthood, but feel free to include whatever you've never been particularly convinced you've missed out on, from any era.

As part of a weekly series, these topics are a place for users to casually discuss the things they did — or didn't do — during their weekend. Did you make any plans? Take a trip? Do nothing at all? Tell us about it!

Now that the holiday season is nearly over, I figured it is a good time to share the gifts that we gave this year. If there is a particular reason why you gave what you did, please share!

Edit: Going to plug USPS's Operation Santa. I plan to participate next year since it seems pretty direct with the giving. Found out about it way too late this year!

When I click on the "x comments" in the upper right to see responses to my previous posts, it lists out any unread comments to my posts. If I click on the "Parent" link to see my original comment and the reply, I can collapse the reply, but not the parent. This seems like a bug. I can collapse the grandparent, and it all goes away, but I'd expect to be able to collapse the parent as well.