Tip 10: Recycling is good for SharePoint’s Environment Too
This tip is for Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007 and may apply to SharePoint Foundation 2010 and SharePoint Server 2010.
Did you know that there are 2 recycle bins in SharePoint? One bin that can be used by site users to recover items they have deleted for up to 30 days (customizable) after the item has been deleted and one that site collection owners can use to recover items any user of the site have deleted. See the following article to add recycle bin type functionality to Windows SharePoint Services 2.0.