Any widgets that I add to my desktop are permanently saved. If I delete them, they just come back the next time I boot. I'm not sure what to do about this, maybe there is some config file that I have to change? Accidental notes are cluttering my desktop. Any help would be appreciated.

Are you sure you are using Plasma 4? What distribution and exact Plasma version do you use?

My mistake, I was going to post it in Plasma 5, but then found this in the 'before you ask' section:

"Do not file bugs against the "plasma" product: these refer to the 4.x versions and should be kept separate from Next issues"

I interpreted this as 'there is no plasma 5 yet', so I assumed I must have 4. A quick view in the settings revealed that I am using KDE plasma 5.20.2 with KDE framework 5.75.0, however (on arch). Should I resubmit the question in the plasma 5 group?

Don't worry, I just move the post.