Seeking Texture Pack Creation Adivce!

I wasn't entirely sure where to put this, but Nemract's bar seemed like the best place. So, as one can guess from the title, I've had the crazy idea to attempt to put together my own resource pack and am looking for some advice. More specifically, I'm looking for advice on how to edit textures/make new ones, and then get them into a the folder so that Minecraft can read them. I've checked multiple sources that have show how to set up the folder and prepare it, so I understand the easy part. Now, I'm looking to you guys for any tips and tricks you may have on programs to use, techniques for creating the textures, or any other useful information that you may have on this topic. I've also been looking at this program called the Resourcepack Workbench and was wondering if anyone has had experience with it and their thoughts of it. Thank you all in advance!

 

Simple answer: Teach yourself, download resource packs and dig through there files to figure it out :)

 

seeking*

Seaking is a Pokémon.