A most perfect souvenir! Inexpensive, lots of options, don’t have to worry about where you’ll store it traveling home. I love sending them to friends but also always get some for myself. I often tape them into my journal with pictures or highlights from the trip. If they came from a specific location I like putting information pertaining to our visit on them (ex: getting one from a museum and writing the exhibits or favorite pieces you saw, getting one from a town or venue where you saw a concert and writing the set list)
Both modern and vintage. Modern ones are cheap souvenirs to get whenever I travel and are a great way to cover my walls. Vintage ones are fun since they give a little window into ordinary people’s lives in the past (especially if they have writing on them)
Collect postcards all throughout a trip. Use them for brain dumps, and send them all out on your last day. Each person will get a different slice of your experience. Don't forget to send one to yourself.
I usually just make myself drip coffee or a single cup of tea during the week but I’ve got a little time so why not make a whole tea service just for me