I'm not really sure where to post this, but I need advice on home safety with an exploring toddler. Ds2 is 17 months and into everything. He's started climbing on the furniture. All the big stuff (wardrobes, bookcases, etc.) are fixed to the wall, TV secured, etc., but his new trick today was climbing up on a storage chest, and playing with the window handles. He managed to turn the key on one of them and unlocked it. Thankfully he didn't open the window, and I've since removed the keys and put them on top of some nearby shelves.
Obviously the safest thing would be to stop him climbing there, but that is easier said than done. I would normally keep the keys in the window locks (from a fire-safety point of view, I thought it best to be able to open the windows immediately), but I now need to temper this with ds2's exploring. Some of the rooms in the house don't have a handy high shelf close to the window (it's no use putting keys in a drawer as he's likely to empty those), and I'd like to keep the keys accessible to ds1 in case of an emergency. Any ideas?