save workspace in photoshop?

wasnt sure this belonged in the art forum, but please move if it does.

basically i want to know does anyone know of a way of saving al the active documents in a photoshop window. so for example if ive got a project im working on with say 4/5 .psd files open in various stages of work , is there a way to save them all together, so that i can open one file next time i come to work on it and have them all open from that.

sort of liek having multiple forms in VB, but haivng one project file you open.

thanks in advance.