Separating information

Here is the start of what I am working on.... There are two sheets, Jan 2012 and Jan Ven 2012.

In the Jan 2012 sheet I am needing to separate the information by Column A(date). So at the end of each date I need to add a blank line, so I can add a total at the end of that day. I add rows everyday with new info. There is an example of what I am needing it to look like.

Same goes with Jan Ven 2012.... only I am needing to separate the info by column B(Vendor). Again I add to these daily and have to re-separate them each time.

Thank you in advance for any help!!