How can I make the Activity page the first page after login?

Hello,

I wanted to make the activity page the first page after login. I wanted the activity page to be the first page that people will see immediately after logging in instead of seeing their widgets page. Can anyone please tell me how I can do this? 

 

Another question: 

How can I set default widgets that people will see without having to choose their own widgets? I'd like the widgets to be there by default so that I don't have to make members select and organize their widgets. Can anyone please tell me how I can do this? 

Thanks a lot in advance!! Help will be really appreciated!