Use a new condom for every act of sex. Check the expiry date and open the foil carefully without using teeth, scissors or sharp nails. Place the condom on the tip of the erect penis, pinch the air from the tip, and roll it down to the base before any genital contact. After sex, hold the condom at the base and withdraw while still erect, then remove and dispose of it in a bin. If extra lubricant is wanted, use only water-based lubricant. Oil-based products damage latex.