The previously mentioned Cache::Cache seems a good solution to me escpecially if you don't know what and how you want to cache precisely. Cache::Cache has several backends (FileCache, MemoryCache, SharedMemoryCache), and expiry of cached objects can be set globally or on a per-object basis. With these features you can experiment until you find the right solution for your caching. MemoryCache normally is the fastest of these backends, but at the expense of a lot of memory (duh).