What to do with extra whipping cream?

The earlier Father's Day cake used up only 1/4 of the whipping cream. My fren FwF said that whipping cream should be used up asap when opened, or may be stored better if placed in an air-tight container.

We were looking at some ice-cream receipes that used whipping cream and we saw one on Mango Yoghurt Ice-cream. It uses whipping cream and yoghurt (which I did not have in my fridge and I was too lazy to purposely go to the convenience store just to get a tub). No mangoes either but there were strawberries and red dragonfruit in my fridge.

So i "whipped" up some strawberry ice-cream. It tasted a bit sour even without the yoghurt, perhaps due to the strawberries. hmm, not too bad :)
There were still whipping cream left (aargh)...

So decided on a coffee sponge cake (Gina's receipe).

Flat out by the time I completed my tasks last night. But there is still whipping cream left!!! :(