Have you tried making your own "self-stick" sandpaper with contact adhesive spray?I haven’t got the sandpaper stock to press it into service as yet McCreed, will have a crack with some double stick tape at some stage this weekend.
It's better than double-sided tape because you don't get the thickness of the tape (even though very marginal) creating high spots on the sanding surface. Also way cheaper than the 3M Stik-It.
The contact adhesive cleans up off the sanding blocks easily with metho.
My local supplier of the 3m stuff has stooped selling it by the metre and only selling full rolls. Full rolls are way too expensive for my needs, so it looks like I may be going back to the DIY selk-stick myself.
The price of the Sandpaper Man stuff adds up quickly too.