Firstly, compliments of the Season to everyone.
This is just a general question but I would appreciate your views. When I run apps on my iPad 3 I am always aware of what is in my task bar and always make an effort to delete them when I don't need them. My question is, is this good practice and am I using my battery power as economically as possible? Do theses apps use any extra juice if they are left in the task bar?
Thanks in advance,