Replacing wifey's mug

We used to get our double wall mugs from either Takashimaya or J. Little but no luck this time. I decided to try Qoo10 instead and ordered this double walled mug for wifey only three days ago. They delivered it last night, i.e, second day after I ordered. I am impressed. Well the shipping cost $4.50 for local delivery, not exactly cheap.

Paid $19.90 for the mug. Let's see how long this one can last.