Considering the pathophysiology and clinical presentation of heart failure, using diuretics or drugs with diuretic properties is indispensable for adequate management of heart failure patients. However, in clinical practice, fluid expansion is often undiagnosed, and diuretic therapy is not always adequately titrated. Today, several drug classes with diuretic properties are available in addition to classical thiazides, thiazide-like, and loop diuretics. The purpose of this short review is to discuss different ways to optimize diuretic therapy using currently available drugs. Several approaches are considered, including a combination of diuretics to obtain a sequential nephron blockade, use of a drug combining a blocker of the renin-angiotensin system (RAS) and an inhibitor of the metabolism of natriuretic peptides (ARNI), prescription of potassium binders to maintain and up-titrate RAS blockers and mineralocorticoid antagonists, and finally use of inhibitors of renal reabsorption of glucose through the sodium-glucose cotransporter 2 system. Optimal use of these various drug classes should improve the quality of life and reduce the need for hospital admissions and mortality in heart failure patients.