I keep a pending purchases folder where I keep most things I'm thinking about buying which I have researched. Many that stay there more than a few days don't get bought. It's a good way of avoiding implulse buying, so easy on the internet.
Anyway, I have for some time been thinking about one of these cleaners for my glasses.
This is the one I have in my file:
<!-- m --><a class="postlink" href="http://www.amazon.co.uk/JPL-7000-Ultrasonic-Cleaner-accessories/dp/B00112B0U0/ref=sr_1_1?ie=UTF8&s=electronics&qid=1240480584&sr=8-1">http://www.amazon.co.uk/JPL-7000-Ultras ... 584&sr=8-1</a><!-- m -->
Cannot remember who suggested it. The reviews need study to identify anything important to you.