Take a look at this example
It has a flexbox container with flex-flow: row wrap; to wrap all items. This is almost what I want.
When it starts to wrap, item number 6 wraps to the second line:
1 2 3 4 5
6
But always I want to wrap at least two items when it starts to wrap so you'll never have a single items on a line:
1 2 3 4
5 6