Gold souq 4 bargains, ice rink, aquarium, zoo, outside dancingfountains. Pop across bridge to Souk al Bahar. Shakespeare cafe, dont go to organiccafe though.
WiFi is kinda unreliable... Sometimes its open, sometime you need to register... It wouldn't be a problem if the registration part actually happens for once :/
Avoid on Friday evening. Parking is a nightmare. And its harder to get out. For new years eve, limited parking slots are available on payment. Get it before it runs out.
Shop until you drop, but make sure to 1) have your own ride or 2) arrange a ride beforehand, because at closing time the taxi queue can become quite long...