I have a lot more keys - 3 house keys, 2 room keys, 1 letter box key, 1 computer lock key, 5 drawer keys, 1 keyless car key. First thing I did is to strip away the protective plastic on the keys (e.g. the black colour plastic on your keys). This makes the keys a lot less bulky. I used to have a dedicated keys pouch and a coin pouch. Now, I have a single pouch that hold my keys + my coins.