Where to get Cheap Yarn

Wanted to do new crochet project. But recently I am too exhausted to start one. I have collected a few crochet pattern projects on scarfs, hand warmer,  handbags, chokers.. etc. But don’t have the energy to start them. Plus I need to replenish my stock on yarns. Nowadays Spotlight is selling pretty expensive yarn from Australia, selling S$8 plus per 50g for 100% acrylic.  Anyone know where to get more economical yarn in Singapore now?