The availability of modern building materials and new tools has made what were complex skilled tasks super easy. Here are just a few examples.
You don’t always need a carpenter
Putting up shelves
No need for a painter or decorator
Making your own soft furnishings and window coverings
Modern fabric glues can usually be used in place of stitching. It is really easy to find inspiration for no-sew home furnishings. There are tons of how to videos and articles available online.
Re-upholster your furniture