I don’t know how much of a “tip” it is, but I like to use my cellphone’s camera as binoculars. Nowadays zooms can be very powerful and I use it regularly to read faraway signs, see details on distant structures and to see far things in general. The anti-shake software usually is enough, but if whatever I’m trying to read or look at is VERY far, I zoom in, hold my breath to snap a quick picture and then examine it calmly. I’ve found it to be very convenient, specially when traveling