Gadget, known as hardware that serves as a machine or tool sometimes, has brought great convenience to our daily life. However, with the increasing complexity of its service, especially when those device embedded with digital functionality, the convenience comes together with troubles; for instance, complex manuals to full use of the functionality, weak reliability in performance, exceptions in non-expected environment.

To have a better usage of gadgets, we have to pay attention the following aspects.

1) Manual is important to start the usage, however, it is not wise to remember the contents from scrach. Keeping the accessibility is one of the best choices, for instance putting the the manual onto searchable web page, or attaching the manual beside the gadgets, or documenting different manuals together into manual collection.

2) Case-test could help to detect the problems of the gadgets, and reduce the operation mistakes. It is usually important to list all the cases that might cause trouble to the usage, and then try to verify the case-test one by one.

3) The third one is sharing experience. For example, working with partners together is one of the best chance to share experience in using the gadgets. Mean while, making extra clear documentation beside the manual can also share experience afterwards.

4) Finally, to maintain the gadgets, keeping the health of the gadgets so that it can work in it best status.