A couple of more thoughts for tripods.

GorillaPods are flexible and light in weight (I have a 1.6 oz. that can be used for smaller P&S and a 5.7 oz. one for an average size DSLR). The downside is they are only about 6-8 inches tall, so for many photos you need to set them on something else.

If you are using trekking poles, you can consider TrailPix for a taller tripod. I hesitate to use it in windy conditions and it is basically one height, but it gets your camera higher.