When I record the Day in Tech History, I use a podcast template in Sony Music Studio that I created years ago. This template has my intro, any ads I need to place and the outtro music.
When I go to record this podcast, I simply open up my first template where I record and edit content to be saved as a 24-bit 96,000 wav file. When I am done recording, I open up the main template where I place the wav file into. The best part about this is I can splice the audio, then move my ads to where they need to be.
Many audio editors give you the option to make a template. You can even set effects like compressor, EQ and more so you don’t have to re-setup every time. I use Sony ACID Music Studio for mixing my podcasts. Its a great program at a sub-$100 price.