Well, the time is coming, as we are now just about 7 weeks away from this majestic occurrence.
Just some general background information on this eclipse. Total solar eclipses are visible somewhere on Earth with some degree of regularity, but it is very unusual to get one in your country, and even more rare if you're lucky enough to get one in your backyard. The last total solar eclipse to occur in the contiguous US was back on February 26, 1979, and the last one to occur in any part of the Midwest was on June 30, 1954. This upcoming total solar eclipse will also be the first one since 1918 to have the path of totality crossing all the way from the Pacific to the Atlantic, and will be the first one to be exclusively visible over the United States landmass in many, many hundreds of years (in other words, you can't be in any other country if you want to see this total solar eclipse).
Here are some maps courtesy of Michael Zeiler at www.greatamericaneclipse.com
You must be somewhere within the outlined zone to see this as a total solar eclipse. Not 50 miles away, not 10 miles away, not a couple miles away. And the closer you are to the center line, the better. Not to say you won't have a decent show outside of the zone, but in weather terms, it's a bit like the difference between a 6" snow and an all out 3 foot blizzard. For anyone outside of the total eclipse zone, it will look a bit like the May 10, 1994 (annular) solar eclipse.