There are two ways to clear Messenger's cache, depending on whether you're using an Android, or an iPhone or iPad.

You can find drafts of posts in the Facebook app on your Android device. From the app, you can either delete drafts or post them to your page.

If you’ve ever opened your brand-new Android phone and found a bunch of pre-installed apps you never asked for — and likely will never use — you’re not alone. These so-called bloatware apps are the ...