I like programming but I wish it wasn't for this reason status: I added loading my techblog's configuration from a pre-compiled¹ file rather than parsing it from scratch, which significantly speeds up configuration loading because these days I have a ton of CIDR netblocks in it for various reasons. Yeah, maybe they should be pre-compiled into some fast to query database, but there are complications.
¹ The loaded configuration is a Python object, so this is saving & loading a pickled version.