Commission Accounting
Getting paid is only part of the objective, the REAL goal is to maximize the "in come" and minimize the "out go".  Easy?  Oh sure, just keep your eye on both sides of the coin at all times!

Pay everyone their "fair" share and not a penny more -
I recently went through an exercise, actually I didn't do much more than talk, they did the work, concerning the source of income to determine how much of Commission payments received were exempt from local business tax.  I don't know if this will apply to all taxing authorities, you'll have to check with your accountant or tax advisor to determine whether this is of any benefit to you.  Commission payment for shipments to Customers located outside of the tax area might be exempt.
The Mfgr Payments Received by Zip-Code (59.01L) report provided the numbers, the problem was establishing income by calendar quarter.  I do get to take a little of the heat here. 
There are two dates associated with the Manufacturer Commission Statement:
I think the rule-of-thumb here is "make the dates reflect when it actually happened".

Get paid for ALL of the work you do -
Sales Orders written don't mean much if they are not shipped.  Ask a Merchandise Manager what happens when an order is written and only partial shipment is made, or worse yet, no shipment at all.
Several years ago I had a conversation on this subject with a buyer for a regional chain of clothing stores.
Her job performance was measured by the profit margin generated from her purchasing budget.  She spent her budget as she saw fit based on the merchandising program calendar.  At the end of each merchandising cycle she was expected to produce Gross.Revenue/Sales in an amount that covered cost-of-goods-sold, departmental overhead and operating costs, and profit which is passed through the store to Corporate.
In the years since that conversation, I've seen her perspective at work not only in the retail sector but also in the manufacturing and wholesale distribution industries. 
Backlog management is essential in order be paid for everything you do. 

Mistakes and oversights will occur, after all we are "mere mortals".  The errors are most easily caught when activities are monitored by more than one person.
What got us here?  Oh, I remember, getting paid and keeping some.  Yes, sales are important, but that is just the beginning.  It turns out Customer Service can be a selfish activity as well as a profitable one!

Lessons from the School of Hard Knocks
These notes are the result of telephone conversations and email exchanges over the years.  The purpose here is twofold: