The E-tool question:
On Junk day (when people put out their household Junk, not garbage) look for old shovels. ones with crappy handles...maybe broken, cracked etc....pick as many up as you have caches. leave the shovel 10 meters away covered in old leaves. It wont be the best but it will get you the 2 feet down to the top of your cache container. and you dont care about it. if someone does find it, its an old rusty shovel with a rotton handle left in the woods...most will just drop it
when your done using it, heave it off into the woods and be on your way