in world 4 i played like an alone farmer with no metal, so i claim land and then build 2 initial cornerposts, each near its gate and always take with me only one key, so if i would die i could take another key without being sealed within palisade.
if you going to play for long time alone with no mining and no chances to get some metal nugget then build 4 initial corners post, each near its gate and take only one key with you, it will be very reliable even expensive.
p.s. after building palisade don't forget to seal all cornerposts
