Butane Question

So I have had my BluRhino torch lighter for about a month now, and between playing w the cool blue flame (ezily entertained :/) and lighting up my stogies, I ran out of fuel. The salesperson I bought the torch from gave me a tiny refill bottle when I bought the torch. Well my lighter ran out of fuel today and I decided to refill it. WHAT A MESS!!! I pretty much wasted the whole little bottle that looked like it would've lasted me 3 or 4 refills, just from trying to learn how to refill. Anyways, im down to barely nothing in the refill bottle, and I think I finally was able to get the darn lighter refilled (and my room now has a WONDERFUL odor thanks to the butane). So now I have to ask...

- How long did it take you guys to learn how to refill the lighter properly?
- Since I need to buy new butane for the next refill, which brand or type do you recommend? Any links? I know Ronson is a no-no and I should look for one that has been refined a few times. What else should I look for?
- Is there anywhere online I can pick it up for cheap that you would recommend? Or do i go to a hardware store, a walmart, or my local smoke shop to pick up the butane?

Thanks a lot for the advice guys, much appreciated.