Going to a legit optometrist that either cuts their own lenses or tells you where to get good ones rather than trying to find the cheapest option online is probably the biggest thing. They tend to recommend or automatically go for the other top tips, like avoiding any coating that will ripple/peel/fade over time, using high-index materials for high prescriptions (expensive, but drastically reduced the necessary thickness and curvature + distortion of the crystal), and spacing the lens centers to your personal measurements.
Pomegranate pips work well in most salty dishes, roasted apple is great with a strong, soft cheese.