Walmart has built a reputation on offering "everyday low prices," so it might come as no surprise that the merchandiser is the world's largest retailer. With more than 11,000 retail stores in 27 countries, Walmart — and its deals — are ubiquitous.

Batteries are one of the biggest markups at grocery stores. To spend less and get more for your money, savings expert Andrea Woroch told Daily Finance, consumers should buy batteries in bulk at wholesale clubs like Costco.

Walmart's toy department has just about everything a kid could want, but you won't find the lowest prices. Suprisingly, Kiplinger's report found that Amazon routinely beats Walmart by several dollars on a number of toys.

Remember: If you save on wrapping paper, that's more money you have to spend on gifts.

Walmart is no longer the cheapest retailer for CDs. According to Erin Konrad, spokesperson for CouponPal.com, online retailers give Walmart a run for its money in the books and music department. "When it comes to entertainment — be it books, music or TV shows — you're typically better off shopping Amazon," she told MarketWatch.

Nuts and seeds are healthy snacks, but these items are way more expensive at Walmart. You'll save big by buying whole almonds at Trader Joe's — you'll save almost $1.50 per pound, according to Kiplinger.

Related: 51 Healthy Food Items That Cost Under $1

Not only does Amazon come out on top as the cheapest retailer for CDs and books, it's also the cheapest place for Blu-rays. Kristin Cook, managing editor of the deal's website Ben's Bargains, told Kiplinger that Walmart's Blu-ray DVD prices are typically more expensive than both Amazon and Best Buy.

Related: 6 Tax Breaks for Pet Owners

Amazon and Walmart offer comparable prices on some of their household appliances, according to a price comparison conducted by LifeHacker — but not on everything. For example, one Cuisinart coffee maker sold for roughly $12 more at Walmart than on Amazon. A good rule of thumb is to buy smaller items in bulk online and price compare anything bigger before buying it at Walmart.

Rather than spend $2 or $3 per greeting card at Walmart, check out the selection of cards at Dollar General or the Family Dollar. I found cards for every occasion at Dollar General starting at $1.

Related: 8 Best Deals at the Dollar Tree

Walmart's Back to School sales  might be cheaper than the deals advertised by other retailers, but if you're shopping for office or school supplies during other times of the year, I've found Walmart to be far more expensive than discount stores like the Dollar Tree. There you'll find better deals on crayons, pens, markers, tape, glue, packing supplies and storage.

If you don't mind buying generic lotion, toothpaste or deodorant, stock up on personal hygiene products at the Dollar Tree. Walmart does have a huge selection of personal hygiene products, and in many cases it offers better deals than its big-box competitors, like Target; still, Walmart's generic brands can't match dollar store prices.

Store-brand snacks at Walmart are cheaper than some competitors, but Walmart can't beat the low cost of dollar store snacks. Stock up on crackers, chips, cookies and other goods for only a buck at discount stores — just make sure you check the expiration dates.

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This article originally appeared on GOBankingRates.com: 

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