This might be an old trick, but it is still a definite speed improvement using this page when you are fine-tuning any WordPress blog.
You can gain access to all the settings & options in WordPress by going to a single url:
Some forms of stored data is impossible to edit this way, such as serialized data, but you can tweak a lot of settings in one single place instead of going back and forth.
Warning: You really should know what you are doing before attempting to do this. You can do a LOT of damage to your WordPress blog if you don’t know what you are doing.