Smart shoppers know that to score the best deals, timing is key.

Just as there's a best season to buy certain items, there's also a best day of the week. For example, timing your online shopping according to the day of the week can save you more than $100 on things like televisions and video game displays, CNN Money reported in 2011.

And perhaps contrary to common sense, shopping in advance isn't always a foolproof way to score the best deals. For example, the Wall Street Journal reported that roundtrip airfare from Chicago to Atlanta in January 2011 dropped by roughly $100 on a Tuesday -- the best day to buy airline tickets -- after a price hike over the preceding weekend.

Here's a round up of the best items to buy on each day of the week:

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  • Monday: Electronics At Online Retailers

    Online manufactures and retailers offer cheaper deals for computers, TVs, cameras, video games and other electronics on Mondays, according to historical price data parsed by two online blogs (extrabux.com and camelcamelcamel.com), <a href="http://moneyland.time.com/2011/11/11/the-best-day-to-buy-just-about-anything-online/" target="_hplink">cited by CNN Money.</a>

  • Tuesday: Plane Tickets

    Prices for airline tickets tend to be higher over the weekend. Airlines typically launch sales and discounts on Tuesday and sometimes Monday night,<a href="http://online.wsj.com/article/SB10001424052748704062604576105953506930800.html" target="_hplink"> according to the <em>Wall Street Journal. </em></a>

  • Wednesday: Jewelry

    <a href="http://lifehacker.com/5873768/the-best-days-of-the-week-to-buy-almost-anything" target="_hplink">According to LifeHacker</a>, women shop more during the middle of the week, so jewelry stores offer the most enticing deals on Wednesdays.

  • Thursday: Handbags

    Buying a purse online on a Thursday can amount to an average saving of 36 percent, <a href="http://www.wsmv.com/story/19087326/shopping-online-certain-days-of-the-week-could-provide-larger-discouns" target="_hplink">according to WMC-TV.</a>

  • Friday: Clothing Accessories

    Friday is the best time to buy belts and scarves online with an average discount of 42 percent, <a href="http://lifehacker.com/5873768/the-best-days-of-the-week-to-buy-almost-anything" target="_hplink">according to LifeHacker. </a> But otherwise, Friday (except Black Friday once a year) is <a href="http://www.cbsnews.com/2100-500164_162-6861063.html" target="_hplink">generally not a good day</a> to go shopping.

  • Saturday: Books

    Historical price data from online retailers suggests that the cheapest prices on books are available on Saturdays, <a href="http://moneyland.time.com/2011/11/11/the-best-day-to-buy-just-about-anything-online/" target="_hplink">according to CNN Money.</a>

  • Sunday: Groceries

    Gathering coupons from the Sunday paper and combining those discounts with weekly grocery store sales (which typically go into effect on Wednesday) will get you the best prices on groceries, <a href="http://www.smartmoney.com/spend/deal-of-the-day/best-days-of-the-week-for-discounts-1320270169168/" target="_hplink">Stephanie Nelson, the founder of coupon site CouponMom.com, told Smart Money. </a>

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