creating a 41 cent is probably possible doing everything yourself Standard stamp postage .31Envelope (I buy 500,000 at a time) .02Paper (I buy. 500,000 at a time ) .03 Ink (I run two up) .02Naturally that doesn't include the 80,000 machineAddress ink .01Folding stuffing .05So that is .44 cents but doesn't include the 20plus people who make it happen. 7 huge printers 3 large cutters facility and everything else that goes with it. 

So I would have January 2013 for instance in a stack to be folded, addressed and stuffed.

I'll try to keep this short...Have done 3 mailings ( a combination of yellow letters, hand written and stuffed in pretty envelopes letters, postcard mailings).

We have sent the different groups different pieces to try and test what will get the best response.The first group received a standard yellow letter stuffed inside of a handwritten (in blue sharpie) 6x9" manilla envelope (link).

Investor and his three sons are sitting at the kitchen table writing envelopes, stuffing and stamping yellow letters.

I imagine it includes:Template creation: Form, font, size,Data entry: Putting new leads into templatesPrinting: One-at-a-time v lead packetInventory Management: Letters, envelopes, postcards, stamps, etc.Envelope Stuffing: Plus all other manual work to prep a letterScheduling: Determining the the frequency of lettersTracking: Watching lead to letter and where they are along the marketing funnelWhat else am I missing?

The kitchen is full of old moldy food and nasty gunk everywhere including inside the dishwasher, walls from top to bottom just dirty and sticky, with wax etc. all over everything, Every smoke detector, carbon monoxide monitor pulled of the wall, trash stuffed down the bathroom drains, 100s of holes in the walls and ceiling (her stripper poles) etc., Just gross.  

But starting at 8, you can task your child with stuffing envelopes, taking out the office trash, vacuuming floors or even doing door hangers.At age 12, they could do all of the above plus, perhaps, begin mowing lawns at rental properties, cleaning rentals for turnover, perhaps touch up painting.At age 16, they can then answer phones, do some computer work, do some more advanced maintenance and repairs, do bank runs, supply shopping, etc.When my son was about 5 through 9, I paid him $5/hour to stuff envelopes. 

Specifically distressed owners are- recently gone through eviction in past six months, tax delinquent, absentee landlords, some driving for dollars houses with a noticed defect of their property.I'm still doing all the work myself- Printing out hand written font on a 5 x 7 yellow letter, printing same hand written font on envelope with mail merging from an excel spreadsheet, and stuffing each envelope plus putting the stamp on.

The materials and stamp will cost you about half that, and the time it takes to do it yourself, in my experience, is about 1 minute per mailer (printing, stuffing, sealing, stamping, sending).