Anchor and trolley. Gotta have it. You want to think about where you want the trolley (left or right side).
I don't use actual brush clips, but it can be very useful to tie off to a tree or piece of brush. Be careful to keep your line above the water so you can get it back off the tree, or get a real brush clip. If you are fishing standing timber, this is a much better method than dropping an anchor. I sometimes work my way down a bank by tying off to one tree, then another, etc. Its faster, you don't spook fish so much, and you don't risk an anchor getting tangled up and lost.