No, not that kind,

GIMP the photo editing software.
Just wondering if anyone uses it and knows how i can save my cut outs. ?
I'm probably doing it all wrong as in - trace out the outline > Right click > select from path > then i hit control and X to save the cut out to the panel on the right where i can select and drop it onto another image.
Up to there i'm fine, but if i do another cut out and save it the same way, it replaces the other one, but i want to play around with both, or more cut outs.
Also, if i close the programme my cut outs are deleted, is there any way i can save them. ?