I can't believe it's been 10 years since the 1930 US Census was released! As my parents were born in the 1930's, this will be the first time they've been visible in a census record.
Because there won't be a name index at time of release, the 1940 US Census will present us with a different challenge: narrowing down the Enumeration District.
The National Archives' website has some great suggestions regarding how to prepare for searching in the 1940 US Census, including: 1) make a list of people you will be looking for; 2) find their address in 1940 using several different resources such as city directories and WWII draft records; 3) then identifying the 1940 Enumeration District.
In addition, Steve Morse's website www.stevemorse.org/census/ has three different utilities you can use to find the 1940 Enumeration District.
April 2 will be here before you know it, so get busy making that list of people you want to locate in the 1940 US Census!! Also, sign up for the 1940 US Census Community Project at http://the1940census.com.