To date my favourite and most used widget has been Notepad as it stores all the bits of info I need to access regularly.
Unfortunately, it became corrupt and new versions are no longer available. But it did save all the text in separate text files.
The good news is that I found a couple of new notepad widgets. Both have their good and bad points.
The best one for me is SecretNotePadPlus. It allows for extensive editing and has a large window if needed. It can also lock the notepad with a password as shown in the bottom screen shot below.
The other one has a fixed window which is much smaller. Although it doesn't have the same edit capabilities, it does have the facility to enter a category if you use multiple windows and also a page title. Both of these are lacking in SecretNotePadPlus.
Below are a couple of other screen shots.