@pseudoware taxis in Singapore plentiful and very cheap.
Avoid Marina Bay Sands as huge, impersonal, and far from anything unless you like shopping centres with faux Venetian canal!
Recommend Telegraph Hotel right in Lau Pa Sat and easy walk to China town.
Scarlett is boutique hotel little closer to Chinatown.
DAO by Dorset is great hotel, rooms have kitchen area with washing machines - just a few mins walk further from Telegraph.