Plenty to eat & drink in SG, not a great deal else. Some of my favourites
Dim Sum, Xin Yue, Mohamed Sultan Rd
Zi Char, New Ubin Seafood, level 6 63 Hillview Ave
Market, Redhill, Redhill Close/ Maxwell, Maxwell Rd
Indian, Banana Leaf Apolo, Racecourse Rd
Japanese, Yumeya, Mohamed Sultan Rd
Coffee, 40 Hands, Yong Siak St/ Common Man, Martin Rd
You could also go for wander around any of these spots, get lost, get a feed, have a beer. You can explore almost anywhere & when you're over it, get in a cab & you're home for $10.
Satay St, Boon Tat St. Night time loads of satay stalls
Keong Siak St, Chinatown. Local & western food, bars, pretty much all good
Bar on 54th floor of Marina Bay Sands (hotel end), crazy view & fairly standard prices
Duxton Hill/ Club St, from nice restaurants to bars full of hot young things trying to pick up cashed up westerers
Robertson/ Clarke/ Boat Quays, bars for miles, touristy towards Boat Quay end
Pulau Ubin, island off the East coast is like stepping back in time. Hike/ ride & get some seafood after. Boat from Changi Point
Bugis area, cool bars & galleries
Tiong Bahru, Art Deco suburb now full of tiny bars/ shops/ restaurants
There are a couple of bike shops worth having a look at if you're into looking at bike pron, Reevolution (Santa Cruz), Morse Rd/ Attitude bikes (Nicholai), Telok Kurau Rd.