optimizing mongo db

mongodb part 1

> use sampledb
switched to db sampledb
> a = {"name" : "chris"};
{"name" : "chris"}
> b = {"name" : "jenn"};
{"name" : "jenn"}
> db.users.save(a)
> db.users.save(b);
> db.users.find();
{"_id" :  ObjectId( "4d2a3decdf59a32a1973e8d3")  , "name" : "chris"}
{"_id" :  ObjectId( "4d2a3dfadf59a32a1973e8d4")  , "name" : "jenn"}