I do not know or have a hope chest, and I have nowhere to store any garbage bags. I'm thinking more of super camo storage. Something that could be seen in plain sight and even moved around, but as long as it stays closed, contents stay hidden. Here is what I have planned:
I have pine trees where I live. Tons of needles are all over, as are the trees.
I have spent the past day or two digging out a hole behind a low coverage tree.
I have a sturdy wooden box sealed on the inside and outside with duck tape. The seal for the lid of the box has flex seal to prevent anything getting inside.
This box is easily big enough to hold 80 goodnites.
The hole is up to my knees deep. 6 hours of digging while family is off doing things.
I plan to take the goodnites, store one or two in the house in an old hollow book I made at a time. Keep the rest in this container.
The goodnites will be in a bag in the box which will be in a bag.
I will place all the dirt and pine needles on a bag so that the box is covered but I can lift a bag full of dirt, revealing the box.
tl:dr Big water-tight wood box in a bag covered by a black garbage bag full of dirt disguised to look like the ground covered in pine needles. Move the needles, move the bag, open, take 1 or 2 goodnites, re-cover box and bag, hide goodnites in hollow book until use.