rob.divincenzo

This plugin allows you to set passwords to expire every X amount of days (default is 90) and to expire all non-admin user passwords (requiring new unique passwords).

WP Expire Passwords

This plugin allows you to set passwords to expire every X amount of days (default is 90) and to expire all non-admin user passwords (requiring new uni …

ramon fincken

Auto deletes expires (prunes) posts or pages after a certain amount of time. On a per category basis (single category, or all at once). 
Handy if you want to have posts with a limited timeframe such as offers, coupons etc.. 
Posts will auto delete on a per category basis: single category OR all categories at once. 
All (custom)post types are supported. (CPT support) 
Will also trash post attachments. 
Sends notification to site admin (can be turned off). 
No cronjob needed 🙂
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Auto Prune Posts

Needs to be updated; too many errors thrown. Hopefully this will be attended to as it's a really useful plugin otherwise.

Throws errors on activation.

Auto deletes expires (prunes) posts after a certain amount of time. On a per category basis (single category, or all at once.

WP Expire Passwords vs Auto Prune Posts