These popular retailers are known to have epic back-to-school savings

We know, we know, summer just started. But at the same time, August is right around the corner, which means ... so is the first day of school!

Parents, if you're stressing, you're not alone. According to RetailMeNot, over 9 in 10 parents say back-to-school shopping for their children stresses them out. What's more is that 75 percent of parents stressed by back-to-school shopping say money can be a stressor. We're here to help.

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Now, we're sure you've already seen (and groaned at) a bunch of TV commercials for back-to-school savings, but if you're still wondering about where to go first, RetailMeNot gave us a little intel on the historical average of back-to-school savings for major retailers.

Check the top 3 out below:

Macy's: 30 percent off
Old Navy: 26 percent off
Kohl's: 21 percent off

Not to mention that Walmart has more than 300 classroom essentials for less than $1, more than 600 items for less than $2 and over 1,000 items for less than $3.

Shop some notable rollbacks below (we're talking 25-cent items, people!):