Next time you use a post-it don't throw away straight away run it through the keys on your laptop or desktop computer keyboard as this collects dut and crumbs comes in handy.
Do you like watching movies on your mobile phone and can never find anything to lean it on so its hands free. Try and use a pair of sunglasses put the sunglasses down on a table or something and then place the phone onto it .
Sick of opening Juice cartons and it explodes and pours all over. Well put a little cut in top corner and then open.
Make your own cook book holder. Like cooking get one of those coat hangers which as the clip bits and hook on kitchen cupboard and then clip your cook book into it there you cook you can follow on with out it in the way when Your preparing and cooking.
Easy iphone speaker , Get a toilet roll holder and cut a strip on the top and slid your phone into it like below. ?