If you are using a small leg bag, use the catheter leg strap that came with your kit to secure the urine bag to your leg just below your knee. Leave some slack in the tube so the catheter will not be pulled when you move your leg.
If you are using your condom catheter at night, attach the catheter to the bedsheet with a safety pin. Make sure the safety pin goes around the tube and not through it.
The urine collection bag must be placed so that your urine flows downward. If you are in bed, you may attach the collection bag to your bed under the mattress. If you are sitting in a chair, you may attach the urine bag to the chair below the cushion you sit on.