Ordering feminized seeds

Hi, I'm about to order some feminized seeds and would like to know if, in your experience, 5 seeds would be enough for a successful grow or would it be prudent to get 10. That's it.
Thanks,
JDOG

well it depends on how you wanna grow..Do you wanna go seed to harvest? or Keep moms to clone?...And how much you wanna grow? do you have enough room for 10 plants?...
There are alot of factors depending on personal goal..and space

It all depends on what you determine to be a sucessful grow, who you buy seeds from, etc. I just germed 4 out of 5 and those four are doing well....I got room enough maybe, but I could still lose another to whatever....If you need five foe a good grow, then plant 6 or 7....beter to have to many than not enough

How much space do you have and what kind of light are you going with?

Well 420, right now I have a aerogarden, an old phototron and of course the great outdoors. I think I'll try a few different strains (5-6 seeds apiece) and see which ones I like the best. I'm a little gun shy because my last germination attempt was pretty dismal. This time I'm gonna soak the seeds for 12-16 hours and then put them in tissue paper.
I want to ramp up the scale of the grow a bit but have many different things, people to consider. I do enjoy the hell out of my little grow and can read about seeds for hours.
Thanks to everybody for the advice.