Perhaps two of the most obvious and useful tools are an inflation kit and quick connect couplers. The quick connect couplers make it fast and simple to change tools. The inflation kit attachments allow you to inflate everything from beach balls to automobile fires. Never point the gun at the eyes or other parts of the body. Again, be sure the stapler is flat against the surface being stapled.
Larger staplers are available for attaching roofing shingles and so forth.
The dual-action air sander should always be touching the surface when it is turned on. This type sander is frequency used in automotive work but many other uses around the house, such as rust removal or paint preparation, make it a handy tool to have. This speeds up paint application and gives a smooth finish. There are a variety of spray gun designs on the market for various types of painting. This works well for removing rust and old paint and for preparing surfaces for painting.