I have a specific folder of bookmarks for online resources, sticky notes as book marks in book resources, and then other stuff I have either written down or in a txt file in a directory.

When trying to outline a new project, I just use my white board. Or I'll have brain storming sessions with someone to kind of weed things out. I also have this little notebook/journal thing that I write things down, just general ideas.

I listen to a lot of random music when I do. Depends on my mood prior to writing code. Sometimes opera, sometimes Something Corporate, sometimes Mr. Chief, but generally speaking I have a playlist for when I code with a mixture of different types of music. I also like to listen to the Kingdom Hearts OST, which I have on my phone so it works out.