Setting Table borders to 1 in Notes gives quite horribly large  table borders. Here is a way to better ones.

Set the borders to 0 using the Notes Table properties dialog.

Then go into the table HTML properties and set the Other to:

BORDER="1"

This actually sets the properties to:

BORDER="1" BORDER=0 CELLSPACING=0 CELLPADDING=0

which gives a nice thin border.