When I currently open Excel 2007, Excel automatically opens PERSONAL.XLSB.

I want Excel to automatically open a new sheet instead, (like it used to).
Is there any way to do this while still having the macros in PERSONAL.XLSB
available?
I've located the file at ...\AppData\Roaming\Microsoft\Excel\XLSTART, but if
I remove the file the macros are no longer available.

Using windows 7 ultimate.

Side note:
I generally start working on the spreadsheet that opens up, and it doesn't
occur to me to save as a different file since I use quick save shortcuts
(Ctrl-S). I have added macros to PERSONAL.XLSB, and don't want to remove
them. I don't want to have to Close the file and open a new one every time I
start, as I get distracted easily and lose my ideas.