I don't know if you would call this a tip or trick - more like a word to the wise.  I was walking by the doors to the railroad when I heard this disturbing sound......drip....drip.drip.drip...with only a few seconds between the drips. Upon investigation I found out that I had a water problem with water dripping from the ceiling and a big puddle on the floor. An investigation as to the source found that it was coming from the laundry room above. The floor underneath the washer was wet, but I couldn't find any leak.