How to Draw what you See

I found this tutorial on emptyeasel.com. This seems like a good site, mainly aimed at traditional materials and a bit of Photoshop. It is well set out and and easy to read. The idea of drawing what you see reminded me of this excellent article about drawing clutter on the Temple of the seven golden camels blog. I have quite alot of clutter, so when I sit down to sketch stuff the problem of how to get a decent drawing out of it all occurs frequently