One of the first things i notice wile performing recreational activities with my first doll was that in certain positions the wig hair would be all over the place more specifically my face and when things get hot and sweaty it can be kinky but also a bit annoying at times, ever since every doll posed the same dilemma but a wile wile back ago i bought some hair bands and hair clips which help, then i started buying more clothing items for the girls including tops and t-shirts, etc ... and i started using them to hold the hair in place this turn out kind of nice since it help keep the hair in place wile moving, posing or dressing the dolls, it also helps keep the hair nice and neat, well at least a little bit. I have notice that this is a common issue and i have to apologize for posting this idea so "late in the game" but i kept forgetting to post.
I know that another solution is the use of short wigs but if you are like me and prefer long hair it might be worth a shot, i am quite sure that many others have come to the same or better ideas, after all there is nothing new under the sun but i have not seen a post about it yet so there goes my two cents.
Typical long wig
Ten seconds later
Another ten seconds later
And another ten seconds later
Yup! you guess it another ten seconds later