Hi Paddy, :D
This is one of the joy`s of home wine making ;D Yeast is so microscopic that we do not possess the ability to kill it off in the same way that the big boy`s do. If you have racked the wine a couple of times & added some sodium metabisulphite (camden tablets) It should be fairly stable, & not likely to fizz too much. It should be safe enough in glass wine bottles with screw caps. Most wine from supermarkets come in these nowadays so I assume you may have some of them? Plastic water bottles will be fine too, but only for a short time, glass is better.
By the way, if you are using camden tablets, throw them away & make up a solution of metabisulphite using 2 oz, (50 grammes) & making this up to a pint with cold water.Leave to dissolve, then keep in a bottle tightly stoppered. Use a teaspoon of this when racking off your wines, DO NOT BREATHE IT IN, it has a very strong smell of sulphite. It will keep for ages & is a much better way of stabilizing your wine.
Adrian.