Sometimes a Polarizing filter helps. If they don't come
with a way to attach a standard filter, you can usually get a cheap adapter that
will fit your digital. I have a couple of Canon PowerShot cameras, and we
use a couple at work too. I got an adapter for next to nothing on Ebay
that fits all the PowerShot models I've tried it on. I can now screw on
the 52mm filters I already had for my old Pentax K1000 and Cosina (knockoff of
the Pentax), and they work pretty well.