Lighter, notebook, matches, a couple of hive tools, bee brush, couple of porter escapes, scraps of newspaper, a couple of pairs of spare gloves*, queen clip, marker pen, uncapping fork (with the prongs stuck into cork so they don't stick into my hand!), knife, mouse guard (plastic, not feline), pencil, couple of dead earwigs.
Some good ideas in other posts though - must chuck in my penknife, some twine and a box of drawing pins.
* I just use plastics - proper gauntlets are on this year's shopping list!