Carrefour has many stores in Tainan and Tainan County. They merged with Tesco (there are no more Tescos on the island) several years ago. They are a super store, and have everything form household appliances, TV's, cameras, computers, clothes, and food. You should definitely know where the nearest one to your house is.

Carrefour addresses in Tainan:

安平店
AN PING STORE

06-295-7588

700 台南市中西區中華西路2段16號。
16 CHUNGHUA WEST ROAD SEC. 2 TAINAN 700
(24小時營業)

中華店
CHUNG HUA STORE

(06)275-6050

710 台南縣永康市中華二路350號B1-1-8
B1-1-8 350 CHUNG-HUA 2nd ROAD YONG KANG TAINAN 710

嘉義店
CHIA YI STORE

(05)235-3606

600 嘉義市博愛路二段461號
461 PO-AI ROAD SEC. 2 CHIA YI 600
新營店
HSIN YING STORE

(06)6569435

(730) 台南縣新營市健康路251號
NO. 251, JIEN-KANG RD, HSIN YING, TAINAN 730
中正店
CHUNG CHENG STORE

(06)253-8481

710 台南縣永康市中正南路358號
358 CHUNG-CHENG SOUTH ROAD YONG KANG TAINAN 710

仁德店
REN DE STORE

06-2496666

台南縣仁德鄉中山路711號