$ tips: I also use DBS PayLah! with FavePay integration to pay at places which have FavePay, because it automatically credits the cashback into my FavePay! So convenient.
Furthermore I love using the DBS Green LiveFresh! credit card for cashback on my online snack purchases at eco-friendly places - there's 5+5= 10% cashback, what a win-win for you and the planet!
I also frequently check the card promotions page https://www.dbs.com.sg/personal/cards/promotions/default.page to see if there's a good deal with my card. I got $35 off on Klook once, was very happy with that!
My other 2 favorite WFH money hacks are...growing my own edible plants to save on grocery trips (what a great view while working) and exercising while cleaning the house to save on gym fees!
I got a hydroponics kit last year and although I was nervous, the plants starting shooting up! I'm about to eat a thai basil tofu dish with my own thai basil (pictured) right after this, have also made pesto from my sweet basil leaves and stir-fried my sweet potato leaves. Saves me a few bucks at the grocery store but gives me lots of freshness.
The second one is exercising while cleaning the house - since the gyms are closed, now is a good time to save on the gym fees by incorporating some home workouts. Sweeping and wiping become a lot more fun with some music on!