Picking list consolidated

hi All

I want to generate the report, in which i can consolidate the sales order whose picking list is generated date wise and item quantity wise.like in a particular date i have to deliver 20 sales order and for say in two sales order one item is common 10 each, so it show item then 20 quantity.I tryed to take from the AR/journal/picking list but in that item are not getting consolidated.Please suggest me from where i can generate such report.

thanks