For most vapers 45ml would be the same as being out.If you ask most people i bet they would say they have a minimum of 100 ml at any one time and I suspect quite a bit more. I have about 350ml most of the time. While I applaud your frugality I would suggest you buy more if for no other reason than to save on shipping cost. Good luck and I hope it gets there soon. Welcome to ECF!
i usually buy 5ml sample bottles thought id bump up to 15ml lol.