I'm having an issue with my eldest (3.5y) waking me in the night at the moment for random and unnecessary reasons. Last night's was to pick up the tissue she had dropped!! 
I'm slightly at the end of my tether as also we have 4 month old twins and I'm knackered.
I realise her behaviour is likely to be related to the twins' arrival so am keen to avoid too much negativity. Also I don't want a tantrum to wake the whole household!
Any ideas of how to fix this? I've got a vague recollection of a friend doing something with a pasta jar to solve a similar issue a few years ago but can remember neither the premise nor which friend it was!!
Thanks!