Although convenient, it is not wise to buy condoms stored in hot laundromat bathroom vending machines or infrequently used rest stops, since heat breaks down latex rubber and spermicides will expire over time. Also, do not store condoms in hot places, including cars left in the sun. The stock in grocery and drug stores turns over fast enough to provide the freshest condoms. Check the expiration date on both the outside package and condom wrapper. Don't rely upon one that has expired.
Condoms range in price, but are generally inexpensive.
They usually come in packages of three, six or twelve. Clinics have them for less than retail stores and can usually sell them individually. Lots of safer-sex programs have them on display in stores, bars, and schools for a small donation. Many education and disease prevention programs give them away for free. Latex condoms come with spermicidal lubrication, non-spermicidal lubrication or without any lubrication.