Reports: comparison date range selection request add range 1 day

Hi, first of all I really like using the report tool, but this is a feature I really miss. Especially when looking to eCommerce statistics it's nice to set an automatic report to compare e.g. revenue last 7 day's compared to previous period. But, for bigger eCommerce clients they want also be able to see yesterday compared to day before! This is not possible now so I have to use 'custom date' but this doesn't allow me to run automated reports because every day I have to adjust the date to next day. 

So next to
> this week
> last 6 days
> etc.

Please add
> previous day (compared to day before)

Hope you can add this very soon, it would make my automated reports much really automated :)

Thanks

Seem to me a small add on the report system?