Platypod Extreme Gone Bush
It's not a tripod. It's less than that. But maybe it's more than that too. It's very easy to pack and could be very handy when you least expect it.
Silver on a Cloudy Day
A good tripod and very slow shutters combine to make a little silver from a cloudy day. So long as you don't mind getting your feet wet, or that tripod.
An update to last year's feature on shooting star trails. By combining a "bright frame" with the trail you can achieve a smoother and more pleasing look to your trails.