Illegal drug users get fired more frequently (4.6 percent were terminated within the past year compared to 1.4 percent of non-users). Drug users also switch jobs more frequently; 32.1 percent worked for three or more employers in the past year, compared to 17.9 percent of non-drug-using workers.
This can mean a good supply of mulch alternatives. Grass clippings can only be used as mulch if the clippings are added to other types of mulching ingredients. The reason for this is that grass clippings do not have a free circulation of oxygen and actually can build up methane gas in larger volumes.
A couple of organic materials available in your own yard can be regarded as sources of cheap mulch or even free mulch: lawn grass clippings and the leaves you rake up in fall.For optimal use as mulch, however, each should be prepared ahead of time (see below). It's cheaper and easier to cover a large area with black plastic mulch than with the more expensive bark mulches. 2  Like black plastic mulch, poly tarps provide a cheaper and easier alternative to bark mulches for covering large areas. 3  An advantage poly tarps have over black plastic mulch is that they're sturdier.