A look at the Safari preferences

A look at the options for your bookmarks

Change your homepage

Change the default Safari download folder

Remove the data found in the other forms section of auto fill

Remove specified user names and passwords

Clear the searches on Google you've done

Disable blocking popups

Empty your cache

Disable plug-ins, Java, JavaScript and pop-up window blocking

Enable pop-up blocking

Make text bigger temporarily

Set a minimum text size and Safari won't show text smaller than the selected size

RSS options - Default RSS Reader, updating and more.

Tab Settings - how to open a new tab, select tabs and windows as created, confirming when closing multiple pages

Make the tab key highlight items in Safari

Set Safari to have a blank home page