- Recursively deleting sites
- Create a list in multiple sites at once
- Modifying field settings - some internal settings that you cannot modify in the regular interface, and the option to modify lists with the same name in multiple sites at once
- Push a web part to multiple sites (a specific page in each site) at once
- Manage list event hanlders (register and remove event handlers from lists)
Then you need to have this tool by Ishai Sagi
The event handler functionality has proven to be of great help to me.