Finder - search default to file only? ; auto trash emptying?

1) When using Finder, it defaults to displaying all files that mention
the search term (content or filename). If I just want filenames as a
default how do I set that up? I can't find anything for that in Onyx or
Lingon.

2) Is there a way to have the trash automatically emptied after a set
period? eg: Trash older than 2 weeks gets deleted automatically. And
if so, can I get rid of the trash icon on the dock? (In Onyx I selected
to not show an empty trash icon, but it's still there in the dock -
perhaps it meant on the desktop).


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