Top five accessories

1. Helmet  dude !!!!!!!!!!
2. Lock    lock it or lose it
3. Water bottle and cage   or hydration pack... hydrate, or die!
4. Kickstand   #4 and dropping refer to #2
5. Seatbag    don't leave home without it or at least a dollar for soda

Other notable things:

• Gloves
• Speedometer
• Spare tube
• Pump
• Tools
• Cell phone  (instead of the previous three items)
• Bicycle rack for the car
• Shoes
• Padded shorts (or at least padded underwear)