[Zope] Cached Variables

Hi, I am developing an application that is a front end to an RDBMS. Sometimes, when loading a page, several scripts get called that all require the same information from the database. It would obviously be costly for each script to call the same ZSQL method. My method for avioiding this senario is... Get the scripts to call another script that is a wrapper to the ZSQL method. This wrapper script returns context.REQUEST[value_name] if it exists or, if it does not exist, executes the ZSQL method, stuffs the result into REQUEST[value_name] and then returns it. I am not convinced that this is the right way of dealing with this situation however. Is there a better way? Thanks, Calisp