a method of presenting and selling products or services in which a salesperson goes to the residences or homes of potential buyers, knocking on their doors to solicit business
"Many homeowners dislike door-to-door selling and consider it to be disturbing to their privacy."
a procedure or basis for evaluation or assessment to see if something is capable of being accomplished or brought about, or is possible
"A business will often do a feasibility test on a product before spending money to market it to consumers."
feel the pinch
a financially difficult, tight, strained, or squeezed circumstance or situation
"Experiencing little demand for its products, the company began to feel the pinch."
any container to discard or throw away unwanted paperwork; in an office setting a container for rubbish; the wastebasket
"The salesperson crumpled the cancelled order and tossed it into file thirteen."
a wealthy and privileged person
"More than one fat cat has been seen visiting the offices of political candidates."