I would like to take this moment to give a big shout-out to the USPS. NanaGram wouldn't exist without the postal service, in the US and abroad. Apparently, the USPS is struggling financially right now. You can help the USPS by buying stamps, which you can order online [1]. If you're new to the old-school hobby of letter-writing, I wrote some guides [2] to help you figure out how much postage you need for letters domestically and abroad (e.g. Canada [3]). Lastly, a delightful thing you can do for a family member or friend is send them old photos in the mail (just be sure to scan them in first if you're mailing originals) — I wrote a post about sending photos with stamps. [4]
[1] https://store.usps.com/store/results/stamps/_/N-9y93lv [2] https://nanagram.co/blog/how-many-stamps-usps [3] https://nanagram.co/blog/postage-to-canada [4] https://nanagram.co/blog/how-to-mail-photos