Two of the most common small repairs -- both doable in a few minutes with an inexpensive kit.
Eyeglass screws are tiny -- a jeweler's precision screwdriver set (often under $10) is the safest way to avoid stripping them.
Gently wiggle each hinge; the loose one is usually obvious by feel or a visible gap.
Turn clockwise in small increments, testing the hinge motion between turns so you don't overtighten.
Optional: a small drop on the tightened screw threads helps it resist loosening again from everyday movement.
Silicone nose pads wear down, discolor, or crack over months of oil and sweat exposure. Replacement pads are inexpensive and widely available, and swapping them is straightforward on most frames with the push-pin style attachment.
Where can I buy replacement nose pads? +
What if I strip a screw trying to tighten it? +
How often do nose pads typically need replacing? +
Can I use super glue on a loose part instead? +
A few minutes of maintenance keeps your glasses comfortable for years. Need a fresh pair instead? Frames start at $49.

