Where are the garbage bins?

In took 10 days to figure out that something was missing (on top of the sun as previously mentioned): garbage bin.
In Singapore you can get fined for littering so obviously we make sure that our garbage ends up in a bin.
The only issue is the following: where are the garbage bins?
In most cities I've been so far, there were bins regularly on the street, in shopping malls, in subway stations, etc. Anywhere were people are passing by and a likely to have something to throw away, there are bins.
Not in Singapore.
It's not allowed to eat or drink in the subway and consequently (?) there are no garbage bins in the station or the platform. Trust me we looked and we've become very sensitive to the topic given the number of times we ended up walking quite a while with our empty bottles, cups, bags, or tissues.
The lady at the reception of Pan Pacific confirmed that indeed there are no bins in the subway stations.
What a paradox?
On the one hand littering is not allowed.
On the other hand there are no bins.
What are we supposed to do with the things we need to trash?... walk with it until we find a garbage bin, which might at home or in the office. And nobody complains :(