I think with an extension pipe and bottle you could probably use Shewee in a car (but not if your driving!)

 If you have a comfort zip added to your dry suit, it's great to be able to use for a day's scuba diving or even just sailing.

 My tip is to practise using it in the comfort of your own bathroom for a week.

 My main tip for using the SheWee is to be confident. Make sure you give it time to drip through after you finish and give it a little shake (just like the men do) as you slowly pull it back out. Then just store it all back in the bag/case until you get an opportunity to give it a wash. You could put it in the dishwasher if you wanted to.

 I’ve been practising at home with it so that I get the hang of it in the event of a real emergency. Had a few small leaks the first 3 or 4 attempts but then I sussed out that if you hold it slightly further away from yourself rather than pressed on tightly then it flows freely rather than backing up and leaking.