By Alex Lauer For its President’s Day sale, direct-to-consumer furniture company Burrow is throwing a tiered sale from now through February 27. That means when you use code PREZ22 at checkout you can take 10% off everything up to $1,499, and then discounts increase as your cart does, with incremental discounts that max out at $600 off purchases of $4,000 and up. If you’re in need of some furniture upgrades, or just some furniture period, it won’t be hard to reach above that first threshold and start getting those real-deal discounts. But if you haven’t checked in with Burrow in a while, the co…