I absolutely love CharPad and SpritePad. I use them a lot. There are two things that could make my life a little easier though (in CharPad):
I wish that the Flexi-Grid Settings were saved with the project file. I have to adjust these every time I open a project file.
I also wish that there was an option to export the Flexi-Gridded Sub-Maps to one big file instead of several small ones. I have made my own script to merge these, but it's extra work every time I change the map.