Overstock.com takes up to 70% off during its Memorial Day Sale. (Prices are as marked.) Shipping adds $2.95, or bag free shipping on orders of $50 or more. (Oversized shipping fees may apply on some large items.) A couple of best bets:
Campus111 via eBay offers this 100-LED Light String in Purple or Pink for $3.99 with free shipping. That's tied with our mention from last week and the lowest total price we could find for such a light string by a buck. It's waterproof and features several different lighting modes and patterns.
Groupon offers a 2-Pack of SolarString100 Solar LED Lights for $23.99 with free shipping. That's the lowest total price we could find for two similar light strings by $4. Each LED light rope includes 100 solar-powered LEDs and measures 35 feet.
Build.com discounts over 3,000 items as part of its Memorial Day Sale. Plus, cut $5 off orders of $99 or more via coupon code "SPRING5", 2% off orders of $299 or more via "SPRING2", or $25 off orders of $500 or more via coupon code "SPRING25". Shipping starts at $5.99, or spend over $49 to bag free shipping. (Select items below $49 also receive free shipping.) A couple best bets, with prices after "SPRING5":