You don't need a full gadget arsenal, but a few upgrades can help if you're a heavy user:

• A small case with a clip makes it easy to attach to your belt or bag strap.
• A lanyard or wrist strap can prevent drops during outdoor shoots.
• If you're using a larger device like VERTEX-VISTA, consider a holster if you're moving around a lot.

Only add these if they solve a real problem. Otherwise, stick with the basics.