One of the most commonly used methods is to open the settings of the mobile phone, find the "storage space" in the general purpose, and click it to see the words "clean up the WeChat cache" and clean it directly.
Turn off the function of people nearby. This function is used by many people. In fact, the information of people nearby will also generate a cache file, which is useless.
Turn off the WeChat voice notepad function. This function can be completely replaced by the recording function that comes with the mobile phone.
Turn off the automatic saving function of WeChat. By default, WeChat will save the pictures and videos it has seen. You can turn off the voice function in the settings.
Turn off tips for game-related content in discovery.
If you use an Apple mobile phone, you can log in to the APP Store to download any App that takes up a lot of memory when the memory is insufficient, and the Apple system can automatically clean up the cache of all apps on the mobile phone when the user has insufficient memory.