Sounds familiar!! Don't recall anything when mine were young, but....
Put the teapot in the fridge and the milk in the cupboard!
Started cutting my sons hair, then realised there was no 'comb' on the clippers (he nearly got shaved!)
Locked myself out of the house (twice) and had to use a ladder to get in the bedroom window!
Gone to the shop to buy rolls and came out with a magazine, cola, milk and chocolate! Or got there and totally forgot what I wanted!
Peeled potatoes, put the skins in the saucepan and the rest in the bin!!
And my 2 are teenagers!! They reckon its a sign of getting old...I call it stress!!