Here is some general items to bring with you when you ride!
Helmet (Compulsory by Qld Laws)
Sunglasses
Gloves
Water bottle(s)
Reflective clothing or stickers
Sunscreen and/or other sun protection
Insect repellant especially on beach or bush rides
Puncture repair kit
Tyre levers
Pump
Spare tube
Lights (can also be important during the day)
Food (or nibblies) to keep you going
Most of all - your sense of fun and humour