Why? The answer to this is simple: You never know when it’s going to rain. It could look like a beautiful day outside, however you never know when those ominous rain clouds are going to rear their ugly heads. With your luck, just when it starts to rain you’ll get a call from your client across the street asking if you can come over, guaranteeing a soaking. This can all be avoided if you keep an umbrella at your work. It doesn’t have to be a nice one (I have one from CVS that was $9.99), it just has to shield you from the rain.

Remember, if you end up taking it home, bring it back to work the next day. Otherwise, you’ll never remember to bring it back.