How to …

ensure your jars of honey are labelled correctly
…  keep your hive records (template)
…  keep treatment records
…  do a Spring Disease Inspection
…. prevent swarming by using Pagden and Demaree  swarm control methods.
…  keep your bees healthy
…  warn the public that bees are active in the area.  You can download and print any of the following signs (Signs courtesy of www.mysafetysign.com):

Bees Stay Clear
Do Not Approach Beehive
Honey Bees hard at work

Also, BeeBase has lots more useful Advisory Leaflets, Training Manuals and Fact Sheets available here

DIY
Convert a fridge into a honey warming cabinet (with many thanks to Andy Sivell from whose Diary of a Nervous Beekeeper this is taken).