The weather has suddenly taken a turn, and there's a chilly bite in the air—cue lashings of lip balm on chapped lips, oversized winter coats and hats to keep our ears toasty. The trouble is, as soon ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A static budget remains unchanged regardless of fluctuations in sales or production volumes.

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...