When you process wood in your shop, it is helpful to make notations on boards so you remember which have been cut to length or run through equipment like planers or jointers. Instead of using pencils for the notes, use chalk. Chalk lets you mark the wood without marring it so you can be more liberal with your notations. An inexpensive children's sidewalk chalk set will provide several colors so that you can color-code your marking system.
Making it difficult for thieves to enter your home is an effective way to protect your possessions. Research by the Natinoal Crime Prevention Institute shows that burglars generally will work no longer than 60 seconds to obtain entry.