美国一年四季什么时候买什么东西划算?

As a foreigner but living in USA for many years now, I still got confused when to buy what item so I could get the best deal/discounts. After doing some research, here is what I found, according to the Consumer Reports Magazine.

January
Gas Grills & Air Conditioners: they are off-season.

Wedding Supplies: Everyone wants a wedding in the spring, so it is a lot easier to find and negotiate prices for a service in the winter.

Furniture: Most furniture companies release new products twice a year: in February and August. That means they'll be giving some sweet deals in January to make room for the new products next month.

Bedding
Carpeting
CDs & DVDs
Computers
Cookware
Houses and condos
Linens: January has been the best month to get bedding and other linens.
Swimwear
Toys
Treadmills and ellipticals
TVs
Winter clothing

February
Digital Cameras: Since the newest cameras will have just come out post-CES, you can grab last year's models for less.
Houses and condos
Humidifiers
Indoor furniture
Treadmills and ellipticals

March
Luggage: It's in between vacation seasons, so shops are dropping prices.
Digital cameras
Humidifiers
Small consumer electronics (MP3 players, DVD and Blu-ray players, etc.)
TVs
Winter coats
Winter sports gear

April
TV and Other Electronics: Japanese manufacturers' fiscal year ends in March, so they're eager to get rid of old stock.
Computers
Digital cameras
Lawn mowers
Spring clothing
Cruises: Since it is not a traditional vacation month, you can often grab a cruise last-minute for less.

May
Vacuum Cleaners: New vacuums come out in June.
Mattresses: Manufacturers are rolling out new products in the summer, so the best time to buy a mattress is now, while they're making room for all the new ones.
Athletic apparel and shoes
Camping and outdoor gear
Carpeting
Cordless phones
Lawn mowers
Small consumer electronics

June
Suits: Father's Day brings low prices on the suits every dad must have.
Power Tools: Shop before Father's Day for a good sale.
Camcorders
Carpeting
Computers
Indoor furniture
Small consumer electronics
Summer sports gear
Swimwear

July
Camcorders
Indoor and outdoor furniture: August is the second time of year that new furniture comes out.
Swimwear

August
Air conditioners
Backpacks
Dehumidifiers
Lawn mowers
Outdoor furniture
Snow blowers
Kids' Clothing: It's back to school season, so lots of more kid-oriented stores are having sales.

September
Cars: New cars usually come out at the end of the summer, so lots will be clearing out.
Bikes: New models come out at the end of the month, which means you can get discounts on old ones.
Digital cameras
Gas grills
Lawn mowers
Shrubs, trees, and perennials
Small consumer electronics
Snow blowers
School Supplies: stores will be clearing out their inventory from all the back to school sales.

October
Health Insurance: October is when most health plans accept new members, so you could shop around.
Cars: now that the new models are out, the old models are going for less.
Bikes
Computers
Digital cameras
Gas grills
Lawn mowers
Winter coats

November
Baby products
Bikes
Camcorders
Gas grills
GPS navigators
Toys
TVs

December
Bikes
Camcorders
Gas grills
GPS navigators
Home appliances, large and small
Small consumer electronics
Toys
TVs