On Mon, 14 Sep 2009 13:21:27 +0100 (BST), Dave Liquorice wrote:

Ventian blinds are good suggestion or roller blinds but be aware of
the possible translucent abilties of some materials. Those made of
thin strips of cane or fine straw almost might as well not be there
at night with the room light on.

How about vertical blinds? Can be angled to allow light but block view. I
have some that aren't at all transparent but are reasonably translucent so
get reasonable light even when they're closed; this is useful in the
morning as the room's quite light when I come in to open the blinds.

They're also good at this time of the year and later to angle so that the
sun's not shining across the monitor.
--
Peter.
The head of a pin will hold more angels if
it's been flattened with an angel-grinder.