Originally Posted by klevin99

I use a two axis bubble level quite a bit. Helps avoid leaning people, downhill roads that don't, fake leaning towers etc. cost? about $20. And very useful with tripods.

Another tool: remote shutter release. goes well with a tripod, good for shake free long exposures etc. non-canon work and are cheap on amazon, b&H etc.

finally, the cheapest and most useful of all: a baggie and rubber band. Starting to drizzle? tear a hole in the bag for the lens to stick through. Rubber band in place. Put your hand through the big hole or work through the bag. Protects cameras quite well while you get that glistening shot.