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lamjin

That should do the trick !!!
Hettie	The strap on my bag's come off. Can you fix it ?
Larry	Let me have a look. Oh yes, you're right. Well, I'll have a try.
Hettie	I overloaded the bag because I bought so many things that were on  special offer in the supermarket.
Larry	You never could resist a bargain. What if I make a couple of holes    in the bag and the end of the strap and loop a few strands of wire  through to hold them together ?
Hettie	That would be great.
Larry	There you are, that should do the trick.   It didn't take long, did it ?
Hettie	No, thanks a lot. It'll get me home and then I'll go out and buy a  new bag.

                                                                           

Explanation :

If something does the trick, it  has the necessary or desired effect

Example : If you can't go to sleep, take a sleeping pill. That should  do the trick.

小小桥

just learned. Thanks a lot.

janezhu

After your interview, you should send a thanks letter ASAP. That should do the trick in some cases.