I solved the graph paper problem by ordering a whole case of it from a 
supplier, instead of buying the 10-sheet packs at the university 
book/supply store.  But it's always good to know of another source.
But I would be interested in a smaller plum bob.  It only needs to be 
heavy enough to hold a string straight in a LIGHT breeze, and I hate 
carrying extra weight around.
Another item:  I may have to end up looking for photographic paper for 
black/white photo printing soon.  The local camera shop says they can't 
get it any more.  And our state seems to balk at the transition to 
digital.  So I take digital images to use, and black/white for the 
record.  I may just have the black/white film developed and not bother 
trying to print them any more.  That way, the state can still archive 
the negatives.
Meli Diamanti