Bob Smith (UK) wrote:

There are stanley style knife blade holders for removing paint from glass.
It would work on the tiles, and should be OK on worktop, as long as you keep
it horizontal, and you buy a good blade for it (not the bendy metal thing
that comes with it). Thinking about it though, you could curve the pointy
ends up on the cheapo blade to avoid scratches.

Depends on the worktop - would work for flat shiny worktops, but it
doesn't if you have the slightly stippled, matt finish which a lot of
worktops now have as they wear better than the shiny sort. For those
(as I found out last week!) the best bet is IMHO the green scouring pad.

David