I keep procrastinating putting a mount on my bike, so now every time I go out for a drive I need to pull over, take my phone out of my pocket, check to make sure I didn't miss the turn (50/50 chance), put it back in, and get going again - only to repeat the process whenever I feel lost again.

I have (rigidly) mounted my phone to my handlebars for the past 15 years, seems to be fine.