Whether it's a pizza, chicken wings or crab Rangoon
, sales of dinner orders at Delivery.com
jump by 25 percent in colder months, according to data from that site and Rent.com
. A recent national survey of 1,000 U.S. renters found that chilly temps are one of the top reasons customers (especially those in the New York City area, San Francisco, Chicago, Boston and Washington, D.C.) don't want to leave their apartments to go to the grocery store or to a restaurant. Not surprisingly, soup sales increase 53 percent in winter—and with the average cost of chicken udon noodle soup at $9.50, if you're ordering once a week, that's $38 a month—not including tips and tax. Make your own for about $10
and you'll get about five helpings (you can freeze the soup in individual portions; just hold off on adding the noodles and put them in as you're reheating each serving)—and save yourself at least $35 a month.