I am looking for a Mac OS X application to organize my photos. The default iPhoto is lacking two major features which I really want/need:

 - **automatically organize and group the photos by date**: I tried to manually create smart albums and filters for each year and month, but this becomes tedious work.
 - **easily and thoroughly delete photos**: Delete doesn't work. Right-click and delete doesn't exist. Dragging into the Trash is not an option. `Command+Option+Delete` deletes the photo for now and it reappears at a later time.

Also, I'd like a free application, or inexpensive at the most. Other features are a bonus.

EDIT
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Picasa is not working the way I am interested in.

Also, the best example is the way Windows handles the photos in the pictures folder. The photos get sorted and grouped automatically.

EDIT 2
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I've also tried other applications, such as [Pixa][1] and [Lyn][2], but none of them offer any sorting and grouping by date.


  [1]: http://www.pixa-app.com/
  [2]: http://www.lynapp.com/