With so much time stuck inside right now, it's tempting to start some projects you've been putting off around the house. But before you make like a Property Brother, pick up a sledgehammer, and renovate, consider the costs. Many modifications that initially seem like a great idea may actually lose you money in the long run. Rather than sinking your hard-earned cash into an upgrade that will leave you in the red, read on for the worst home improvement projects that real estate professionals suggest avoiding. And if you're looking to freshen up your space, here are 15 Great Home Projects to Tackle While You're Quarantined.