Should I be using flux?

I don't use flux when soldering and I'm wondering whether I should be?!

I think when I first learnt I had some solder with flux in it? But I'm not sure I do now ...

... feels like one of those basic things that I've just totally missed!

On the whole I solder successfully so ...

Your solder may have a rosin core, so you wont need extra flux. Get some cheap solder and try it out and you should see the difference.

while soldering do you see a clear-brownish liquid? if so you have flux core solder, and it should be enough

thanks guys ... it ... um ... explains ... um ... a lot ... ahem ... (blush)