How? You can use it on any skilling. Seems weird that you have a problem finding use for it... :D I want to get the full 50,000xp out of it. Construction seems like a good choice.
That's true, I've only had more server issues with RuneScape in 2002 and 2003, but then again I had a worse internet then (256Kb/s DSL compared to 24Mb/s now.)
Decided to try the PoP randoms in HTML5. Epic hiding skills, bro! Now what was the colour of his legs again? Red? Ah, sir? Would you mind telling me who you'd like to assassinate? Oi! Come down and tell me who to point out!