I like to drink JD and coke

(although I can't afford JD anymore!) but I could never part wth the empty bottles afterwards, so I've got them lined up on top of the kitchen cupboards making me look like an alcoholic

What can I use the empty bottles for? They're the square ones with the plastic srew lids, I've got a few in each size.
Can I use them to store turbo cider in? or for sloe gin? Maybe the tiny ones for rose hip syrup?
Any more suggestions?