1) We have three clocks in this library and a lot of our patrons wear watches. This does not stop them from asking us what time it is. Some little ones can't tell time, of course, and I don't mind answering them (we're an information service, after all, but gee whiz, people!)
2) Our downtown branch has tax forms on the second floor. The circulation desk on the first floor is repeatedly asked for the forms and they direct people upstairs. One of the circ people got tired of answering questions, so she made a huge (I mean, it took up the entire wall behind her) banner in glowing neon colors that read "TAX FORMS, SECOND FLOOR". She made a smaller one and stuck it in front of the desk.
Now people point to the sign and ask "Where are the tax forms?" She will point to the sign and say "Like it says, the second floor." And they will ask "Where is the second floor."
3) The second floor is clearly marked as being so. I wish I had a penny for every time I was asked "Is this the second floor?" One of my co-workers started answering "No, the second floor was sent out for basic maintenance and cleaning. We're the third floor." Some people laughed, but one woman actually said she would come back when the floor returned.
I think the lesson here, Chivewarrior, is that you can do nothing for helpless people but help them...and often that means stating (and restating) the obvious.