Tank Emergency Kit - suggestions please

[ScubaGirl]

Does anyone have a tank emergency/survival kit? I seem to be learning things the hard way with my tank (3.5 years) and wondering what sort of things that the more experienced reefers make sure you always have on hand. Besides some of the obvious (water prepped, quarantine tank, generator for power, battery operated air pump, etc.) what other things do you always keep on hand?

Iodine, antibiotics, ich Tx, red slime Tx, etc.

Thank you for your suggestions.