So those who are buying your toddler clothes on end of season for next year what stores you go to?

Which one is on cheap side ? I have two boys so it goes from oldest to youngest

*Like 3 years ago I found at Walmart summer clothes on end of season for $1 I wish I could find similar to that but everything is so expensive even if it is on sale

So retail gals and anyone who knows when is best time to buy end of season clothes and what store?