Expression: I'll cross that bridge when I come to it.

When you have a possible future problem or decision, you may prefer to wait to think about it, solve it, or decide, until it actually happens. In this case, you can say, "I'll cross that bridge when I come to it."
A few examples:
"What will you do if they offer you the job in Bhutan?"
"I don't know; I'll cross that bridge when I come to it."
"What if our customers don't like our new product?"
"Well, let's cross that bridge when we come to it."

P.S. This post is dedicated to Montse, who reminded me of this wonderful expression!

What or Which?

We use which to form questions when we're thinking about a small number of possibilities, perhaps 2 or 3. For example:
We can go this way or that way. Which way shall we go?
There are three umbrellas here. Which is yours?
Which color do you prefer, green or blue?

We use what more generally, when there could be many possiblities:
What sort of music do you like?
What color are his eyes?
What day is it today?

Here's a short video called Hey You, What Song Are You Listening To?

Just because!

"Just because" is an expression we use to say "for no reason." Here are some examples:

He got her a bunch of flowers just because.

"Why are you so happy?" "I don't know... Just because."

She took the day off just because.

WTF defined

I've noticed the acronym WTF appearing a lot in blogs and magazines lately. These letters stand for "what the f**k?" which is a slang way of asking "what in the world is this person (or group, etc.) thinking? Why are they doing this?" Sometimes people also use this expression to mean that they don't care about the outcome or result of something, and in this usage, the meaning is closer to "why not? What is there to lose?" For Wikipedia's take on this, and some potentially interesting links, click here.

Some people really ROCK!!!

I'm lucky because I work with really cool people, and they do cool things every day.

But some days people surprise me, like today. One of the teams upstairs had the idea of working in English all day.

And they did it! All day! And now they're talking about doing it every week!

This is impressive. And these people really rock.

P.S. This post is dedicated to the Suricata Scrum team.