Things someone might find in a chest, cabinet, or other container (based loosely on the contents of any old chest of drawers, kitchen cabinet, etc.):
1. A selection of old and out of date maps and A-Zs, which might or might not be to a lost city (begging the question of what restaurant recommendations for lost restaurants would look like. Could there be such things as lost restaurants? Presumably, they are sought by intrepid parties of critics)
2. Assorted batteries and other power sources that might conceivably include the only working perpetual motion machine anywhere. Or a tiny sun.
3. String. It is a well-known fact that such places generate string, so a particularly magical drawer might spawn a whole string farming industry, or indeed some interesting theories about the stuff.
4. Assorted healing supplies (which depending on the location might be sticking plasters, regeneration rays, or ritual toads)
5. Chutney, fruit cake, and all those other things that people always seem to give other people for no good reason, and which do not go off, thus meaning that they will be present even in kitchen cupboards that have been abandoned for a thousand years. Will they be edible? That rather depends on whether you think they are now.
6. Christmas cards from people you’re sure you don’t know (who may possibly know you only because they are staring in from another dimension)
7. Since everyone seems to keep a torch in a drawer somewhere, why not other handy adventuring supplies, though some rearrangement of the laws of physics may be needed to deal with the ten foot poles.
8. An entire pocket universe, which will make things very awkward if you need to move.