Money laundering is the process of making illegally-gained proceeds (i.e. dirty money) appear legal (i.e. clean). Typically, it involves three steps: placement, layering, and integration. First, the illegitimate funds are furtively introduced into the legitimate financial system.
Here is information about a currency bill, According to the Bureau of Engraving: * Our present sized currency measures 2.61 inches wide by 6.14 inches long, and the thickness is .0043 inches. * The approximate weight of a currency note, regardless of denomination is (1) one gram. $1,000,000 is 10,000 $100 bills, which weighs 10 kg or about 22 pounds. If stacked in one stack, the height would be 43 inches high or about three and one half feet. Easy to carry in a briefcase if that is what you had in mind.
Recently, the Army G4 (Logistics) published a message to change the property accountability threshold from $2,500 to $5,000. The major point in the message was that property book officers can now drop formal accounting of some equipment costing less than $5,000 and classify the equipment as durable property.