I recently got it into my head that I should build the bed for my guest room/office/barre studio. And once I get an idea in my head, well, look out.

I went online and found some super simple plans (love you, Ana White!) that only required tools I already have. I tweaked them a tad because I wanted a full-size day bed (it’s a long story). I went to Lowe’s, I got all the supplies (love you, Ruby!), and I got to it.

I measured and cut. I got the whole frame and headboard assembled in one day. I...