In past postings, I remember Hamish and Riverkilt mentioning their use of a tripod to take photos. I am ready to make that leap. As I haven't used a tripod before, I am seeking advice on their use.

I will be using one with my new digital Canon Powershot in taking shots with the self timer. One question I have is it best to go with a full size tripod or compact. Other advice and suggestions are welcomed!