Three fun facts? Well, I am not sure whether these are fun, but three useful facts that I don't think are well known are:
You can move your swap.hive back to hive on https://beeswap.dcity.io for only 0.25% compared to 1% elsewhere. Very useful.
You can lease a hive delegation on https://hive.dlease.io/. Similarly, you can lease out your delegation (or HP) at this site.
Hive has a classifieds section where you can buy and sell things with crypto. I have not used it yet, but it seems like a very cool idea! It is https://hivelist.io/.
Bonus: You can find out about the 152 Hive projects currently happening at https://hiveprojects.io/
Excellent information! @harlowjourney