Paper--2 to 5 months
Milk Cartons--5 years
Filter Tip Cigarettes (as if any dumb ass smoker throws these anywhere other than outside their car window)--10 to 12 years
Plastic Bags--10 to 20 years
Leather Shoes--24 to 40 years
Plastic Containers--50 to 80 years
Disposable Diapers--75 years
Aluminum Cans--200 to 500 years
You don't have to put all that crap in the garbage. You can recycle just about all of it:
Just about any type of paper not used for food can be recycled. Items which can't include pizza boxes, Milk Cartons, dirty paper plates, and the like.
Cigarettes--let's face it: if you smoke, you're not concerned with your personal environment; much less the environment in general.
Plastic Bags--hopefully you're shopping with a re-usable tote or taking your own bags to the store. But if you have some to recycle, many grocery stores like Publix have receptacles exclusively for plastic bags.
Disposable Diapers--I'm guilty of this one. I use cloth diapers with my son but not exclusively. Luckily, there are alternatives for those parents who want the convenience of disposable diapers. Check out http://www.world-wire.com/news/0902040002.html as well as http://www.knowaste.com. Also, some companies are producing environmentally friendly disposable diapers like Ecobaby http://www.ecobaby.ie/ecobaby_home_01.htm.
Aluminum Cans--why are you drinking out of aluminum anyway--you should be drinking water! But if you're drinking or eating out of aluminum, you can recycle these just about anywhere.
Styrofoam--just don't patron companies which still utilize this crap for packaging. And one of the most easily avoided is TAKE OUT from a restaurant. Tell them you want GREEN alternatives or you're not dining there again.