With Krento you can launch your programs or open web pages from a circular 3D dock. You can save and load your docks, having more than one application set available.
PDF Gallery is a freeware images to PDF converter. PDF Gallery is a very simple to use, but powerful file conversion tool designed to convert images into PDF files.
Most of my projects are freeware and Open Source. If you are interested in getting the source code - you can find it in one of my GitHub repositories.
Diswy is a small freeware application that can be useful if for whatever purpose you want to hide all the icons on your desktop without having to delete them.