It sounds like you have a bit of a mess and need to figure out where to put things originally so they don't get lost? When I come in the house, my keys go a certain place and that's where they "live". I would look at where you "found" the remote and keys, etc. and why you didn't find them when you looked there before or why they weren't someplace "obvious" (my remote is on the table in front of my chair).

Make the bed so there's nothing under the covers, don't put things on the floor other than furniture legs :-) and put the keys back in the same pockets or purses (mine clip onto my wallet when I'm out). You make me think you have a huge room :-) that so much can get "lost" in it. It doesn't sound forgetful, just chaotic? I carry a pad of post-its with me and write notes when I have to.