Even the best woodworkers can end up with gaps between joints. This simple tip makes the gaps disappear in no time.
Small gaps in dovetail or other joints can make an otherwise perfectly aligned piece look amateurish. You can solve this issue by squeezing a bit of wood glue into the gap, rub sawdust into it, and then sand over it a few times.
You'll end up with a joint that is indistinguishable from the others. Check out the video to see how it's done.
Wood joint gap fill trick [Matthias Wandel (YouTube)]