The most important thing with developing a game is keeping track of your resources. Whether it's in Buildbox (by taking the time to properly name everything) or in your directory structures for assets and naming conventions for those assets, by keeping things organized as you go, you'll greatly minimize your frustration later.
Remember, you may want to update your game later, fix problems, or even make a sequel. Several months or years later, you won't remember that a button was placed in a character folder, or that an asset that should have been named boulder.png was named untitled_object_005 in Buildbox. Naming and organization are key.
Since we're developing (potentially) for multiple platforms, we have to keep in mind that different platforms handle some file and folder names differently. So, we're going to go old-school with naming conventions. This means we'll be using hump-back notation with no spaces, and we're going to pad any numbers to...