I just thought I'd start a thread on how to maintain your GG and general advice to get the best performance - please feel free to add from your own personal experience: 
1/ Keep all visible threads clean at all times. This is very important for the flow of current.
2/ Keep the atomiser connector end dry. If you see liquid around the atomiser connector pin, take some kitchen roll and/or a hairdryer and dry out any excess liquid that may be present. Same goes if you see liquid around the spring end. For a full clean/dry, remove the spring/pin and dry out thoroughly from the inside with a hairdryer. Perform this whenever you notice excessive liquid getting through - this will only affect your GG if you drip smoke excessively.
3/ Always ensure the spring is pushing the pin well above the insulation tubing before you screw in an atomiser. This will affect the contact being made with the atomiser. A bad contact will result in no vapour being produced and could potentially damage atomisers/batteries. If the pin is not making a good contact, extend the spring accordingly.
4/ Always make sure that the button contact areas are clean for transmission. Giving the two contact points a good wipe with an alcohol based wipe should do the trick.
5/ Never over tighten threaded parts.
6/ Always ensure that the GG battery area is free from any liquid.
Anyway, there's a start - any more tips feel free to add.....
1/ Keep all visible threads clean at all times. This is very important for the flow of current.
2/ Keep the atomiser connector end dry. If you see liquid around the atomiser connector pin, take some kitchen roll and/or a hairdryer and dry out any excess liquid that may be present. Same goes if you see liquid around the spring end. For a full clean/dry, remove the spring/pin and dry out thoroughly from the inside with a hairdryer. Perform this whenever you notice excessive liquid getting through - this will only affect your GG if you drip smoke excessively.
3/ Always ensure the spring is pushing the pin well above the insulation tubing before you screw in an atomiser. This will affect the contact being made with the atomiser. A bad contact will result in no vapour being produced and could potentially damage atomisers/batteries. If the pin is not making a good contact, extend the spring accordingly.
4/ Always make sure that the button contact areas are clean for transmission. Giving the two contact points a good wipe with an alcohol based wipe should do the trick.
5/ Never over tighten threaded parts.
6/ Always ensure that the GG battery area is free from any liquid.
Anyway, there's a start - any more tips feel free to add.....