Document and quickly reference your work in the future when you need inspiration.
Use a content management system (can even be a private WordPress blog) to store the swipe file you write: emails, landing pages, etc. Tag each with the specific descriptors, so later when you need inspiration, you can easily and quickly find old/new ideas.
It’s hard to find the best inspirational videos on general platforms like YouTube.
Publish the best inspirational videos and categorize them by subject, theme, person, etc. Have an editorial best list(s) and also let viewers vote.
When you see art that inspires you to do something (with your creative work or otherwise), it’s sometimes difficult to remember it later.
Take a photo of the art and record your thought attached to it in text or audio.