I am brand new to caching, but that is the whole reason I am getting so addicted. If you take the time to plan and hide a cache, it must be important to you, so please let me know why it is important. This is what makes this so great, being brought to new places that you would never have thought about and learning something about the place.
Write write whatever and as much as you like it's your cache. I do think, as some people have stated, the important cache description should go at the beginning so it doesn't get cut off.