Slope Inclinometers Advice

I highly recommend the iPhone app "Steve's Badass Avalanche Inclinometer"...it's the best one I've come across by a long shot and designed for snow work. It gives angle, aspect, elevation, and GPS coordinates all on the same screen and has big fonts and a lockable inclinometer...this last feature is great for accuracy and when sighting down a slope. It costs $3.99 I think.

I have a Suunto compass with a built in clinometer that I find to be very useful, multipurpose, and no concerns about batteries in the cold.

SUUNTO MC-2

I use the compass app on my phone, which has a slope meter. It is easy to read, but it is a pain to use because I have to fish it out, turn it on, find the app... Takes too long. I also use my compass with a clinometer. If I happen to have it around my neck, it is handy, but cumbersome to read (for me). I think having something that is always out or at least handy increases use. I tried to make a mini inclinometer to attach to my pole. Never got past the wood prototype. After reading the article that bwalt posted, I think I'm going to get a sticker. Probably won't work on a whippet, but usually when I'm carrying whippets I'm less worried about avalanche and more worried about firm snow.