Stamps Aren't Stupid: A 2026 Reality Check on 'No Purchase Necessary' Mail-In Sweepstakes
Mail-in entries get written off as a relic, but the alternate means of entry is still baked into plenty of US sweepstakes rules — and it's often the least crowded door in the building. Here's how to read the fine print, format a postcard that survives the mailroom, do the deadline math, and keep a log that proves what you sent.