We live in a relatively older home (built in the 1960s) with lots of finishes that are basic, old, and out of style. In one section of the home, there are several old boring slab hollow core doors that are in much need of a makeover. While I could replace them, adding a little trim to these interior slab doors does the trick for a fraction of the cost of door replacement. I’ll walk you through how I did it below. Disclaimer: In the name of full transparency, please be…