One and a half

Have just been chatting with a friend I haven't talked to for a while, so of course the question that's come up is 

'Where in the world are you?'. 

I said 'Warsaw, like a month and a half or so­ ­'

'A month and a half ago since you've been there or until you leave?!'

And then I realised one and a half is THE number for today.

I've been back in Warsaw for a bit over a month and a half.

I'm leaving Poland in a day and a half (only for 3 days, but it still counts!)

And in a month and a half, I'm leaving for my next trip.

How cool is one and a half, I ask you? ;)