1. many let them dry in place to use for Halloween decor

2. chop off a couple inches above ground to let the roots decompose into the soil and put the rest into the compost bin

3. pull up entire plant and stack off to side to let them fully dry and then

a. chop for compost pile

b. burn

c. chop and use as mulch on the garden

d. pile on unused part of the garden and let them winter decompose in place then till in come Spring

A good machete or a well-sharpened hand axe is real handy when dealing with corn stalks. ;-)

Dave