Even with today’s larger servers and more abundant resources, web applications still need to be mindful of what resources they are using. While the days of worrying about every bit of memory have gone, many applications still work with data sets in the tens or hundreds of megabytes in size. We may not think about it, but consider the size of some of the databases we work with. Now imagine that you are working with all that data directly instead of through the database. How do we work with all of that?