This information is meant to guide you from the Changi Airport to Wink @ Downtown (2b, McCallum Street) by MRT. Click here for direction to Wink @ Chinatown (8a, Mosque Street).
In fact, if your flight lands in Singapore during the day/evening timing (i.e. 6am to 11pm), it is a good idea to try out the Singapore Mass Rapid Transit system (a.k.a MRT).
Besides it's cost-saving, it is also very much hassle-free.
Shown here is the MRT network map of Singapore. If you would choose this option,
You would embark from the Airport Station (CG2).
Alight at Expo Station (CG1) and walk over to the Downtown Line.
Board the train towards the city, and you would arrive at Telok Ayer Station (DT18) some 40 minutes later.
Take Exit A and walk some 200m along the traffic direction of Telok Ayer Street.
Turn left to McCallum Street, at the end of Telok Ayer Street, and you would see a 7-Eleven. Wink @ Downtown is just above it.