with Photoshop
First off, it's better to use illustrator for this, but if all you have is photoshop...
Create the text or whatever you want to add multiple strokes to.
1. Add your first stroke.
2. Make it a smart object.
3. Then you can add another stroke to the smart object!
4. Again, make that a smart object.
5. You can do this over and over again adding as many strokes as you like.
To edit the size or color of the strokes, just open the smart object. It will be a series so you will need to open it more than once to get at all of them.
