A simple but very large desktop clock in the form of a SuperKaramba theme.
Clock is 500x180. Shows hour, minute, and seconds in 12 hour format, also shows day of the week and date.
I needed a big clock on my desktop and other solutions didn't quite fit right. I place this theme on my small secondary monitor so I can stay aware of the time from anywhere in my office.
I don't use a wall clock because... well, where's the fun in that?