...When you are trying to locate that one book that someone requested before time runs out and you just can't find it.

I have a central location for my PBS listed books, but there's always that one book that goes missing.

In a house full of books, that's a big problem.

After having my DH borrow books without telling me, my active PBS bookshelf is all in one box, out of reach. 

Can't blame my DH. He has his own stack of books which he hangs on to for dear life!

What usually happens is that newly posted books go into a pile to be put on my PBS shelf, but some get side tracked along the way.  I have too many damn books!

Oh, I know!  I look at the "date posted" that shows in the transaction box before the wrapper is printed.  If that doesn't give me the hint I need, I sort my bookshelf by date.  The requested book won't be there now, but I look for other books I posted on the same date.  That often helps.

That's a good idea Patty if multiple books get posted on same day.

With me it's usually just posting one book at a time as I finish reading one.

Great tip Patty.  I ended cancelling this one as I didn't have the chance to check my possible hiding spots.  I hate to do that - time for Spring cleaning!