Belkin SurgeCube 1 Outlet Surge Protector with two 2.4A Shared USB Charging  retails for S$59 in Singapore. But during IT Show 2018, it was discounted to S$39.
I always wanted a power plug adapter that allows me to plug in a UK electrical plug and gives me additional USB charging. The Belkin SurgeCube 1 does exactly that. And on top of it, it has surge protection built-in.
Sadly, the combined output of both USB ports is only 2.4A. I wished it was 2.4A per port and a combined output of 4.8A.