1.If you're over 60 years of age don't try and hand hold your camera with a shutter speed of 1/60 or less..Just saying. Seriously, use a tripod to ensure steadiness. If your camera has image stabilization or vibration reduction turn it OFF when using a tripod.
2.Most modern DSLR's and older SLR's have a diopter adjustment for the viewfinder. Make sure it's set correctly for your vision whether or not your wear glasses. One suggestion is to use the autofocus to get a good focus on the subject, then adjust the diopter setting until both subject and data information are in sharp focus.
3. If a cable release or remote shutter release is not available, use the camera's delay timer.
The whole idea is to minimize any camera movement. Have fun and as Joe McNally has said, "if you want to photograph something interesting, stand in front of something interesting".