(prob busy) please make sure you understand I'm not a info marketer but doing real deals not pie in the sky syndication garbage... 

If you an investor, obviously you are going to chuck the mailer in the garbage and I dont think the color of the paper is going to make a difference.

Pull them up and toss them in the garbage.  

If all you ever present to people is overpriced garbage then you business is not going to blow up.

By some of my rentals I see lots of new TV boxes, xBoxes, etc packages on garbage day.

For example, in a case like this, I would: 1) make sure all new tenants complete a "Rental Move-In Checklist" with a section that specifically addresses the condition of the bathroom/kitchen sink, toilets, etc; and 2)  include the following clause in my lease:"LANDLORD WILL NOT BE RESPONSIBLE FOR DRAIN BLOCKAGES AND BACKUPS IN THE KITCHEN SINK, GARBAGE DISPOSAL, DISHWASHER, WASHER MACHINE, TOILET, BATHROOM SINK AND BATHTUB CAUSED BY GREASE, PAPER, FOOD, HAIR, OR ANY OTHER FOREIGN OBJECTS.

Examples:  Microwave blew up (they paid for a new one), toilet clogged, bathroom shower clogged, AC not working (freon), garbage disposal (they installed a new one).But the BIG one was pool motor blowing up.  

If you do have a bunch of stuff shipped to furnish your place, you will end up with TONS OF GARBAGE AND RECYCLING! 

The guy drains the line to relieve the backup but we had to use one of our garbage cans to catch the backed up sewage in the above ground pipes.

A multifamily is a good idea-a duplex might be good as the tenants still do the yard work and you don't have to deal with garbage, yard work, etc.I agree with Jaron about planning and not jumping in.