在.net Web应用程序中加载高度重用数据的最佳方法是什么

Let's say I have a list of categories for navigation on a web app. Rather than selecting from the database for evey user, should I add a function call in the application_onStart of the global.asax to fetch that data into an array or collection that is re-used over and over. If my data does not change at all - (Edit - very often), would this be the best way?Let's say I have a list of categories for navig