MapHammer is a new company that offers both digital and printable map files that are very useful for any campaign (and compatible with any tabletop game).
A blessed being (Tyler Kamstra) made a homebrew document by transforming all the creatures of the Monster Manual into playable races, including the beloved Tarrasque.
Adding minigames to your campaigns can be very beneficial. It removes stress from the players and can generate very fun and creative moments everyone will remember.
The Pathfinder Flip Mat is an awesome accessory for any DM to bring to the table. There are many packs you can buy to spice up your tactical combats and add variety to your campaign in order to elevate your game!
Tracking weather in D&D is something not many DMs do. It opens a new world of possibilities and helps creativity flow, it also helps with roleplaying and realism in our campaigns.