Performance of an existing contractual duty owed to the other contracting party will not normally amount to consideration.

If the claimant EXCEEDS his existing contractual duty, this will USUALLY be consideration.

Performance of an existing contractual duty owed to the other party will be consideratio, PROVIDED that the other party receives a PRACTICAL benefit and there is no duress or fraud.

Partial payment of a debt is not sufficient consideration for a promise by creditor to forgo the balance.

Consideration may be a benefit or a detriment; it need not be both.

Consideration MUST be sufficient BUT does not have to be adequate.

Past consideration is usually insufficient consideration. i.e. if the act was carried out before the promise of payment was made.

Payment of a lesser sum on the due date is NOT good consideration for a promise to forego the balance.