In my quest to provide the most professional audio possible on my podcasts, I recently purchased a professional mic. The sound was instantly better.
Also, I'm using Buzzsprout's Magic Mastering feature which gives the audio of my podcast a wonderfully polished finish. Level sound, reduced background noise, and more.
These things cost money and I appreciate your support in replacing my old mic which decided to die in the middle of a podcast recently. Oh joy! Improv!