A postcard rabbit hole

An idea popped into my head this afternoon: create postcards from the pictures I took on vacation. I know that it's possible to do this with professional printers (Staples, independant shops, Canva, VistaPrint, w/e) but I wanted to figure out if I could do it at home rather than need to print in bulk. Turns out—it's possible, but it's not perfect. I've copied my rabbit hole search below, but the conclusion I've come to is that the "DIY cardboard backing" method might be more worth my time (and to use already-printed material, not my own photos). 3:00pm Search "how to make a post card" ... Delay while doing real day job 3:27pm Reading: Reddit post: Do you make your own postcards? : r/postcrossing - Concensus appears to be that people have them printed rather than printing their own 3:33pm Another "work break" 3:35pm Reading: Home-made Postcards From Recycled Materials - FREE : 5 Steps (with Pictures) - Instructables - True DIY model. Uses cereal box cardboard and recycled…