Quite often. We work different schedules so there isn't as much time together as we would like. We tell each other what we did and what we want the other person to do. It is the next best thing to being together. I am about to go catch her in the hot tub! Should lead to some fun!!

Usually just whenever the other isn't home, we'll masturbate in the bedroom. We don't hide it from each other or anything, sometimes it's just nice to have some alone time. Sometime, though, we'll do it together, which itself is pretty nice too

We do it together and separate just depending on what the mood is or current situation

We masturbate pretty often. Mainly when we are not together. We sext while we are doing it to drive the other one crazy. When we get together later it is usually followed by great sex. Seems the more we do it the more sex we have together!

I always wait for my husband to be gone and I probably masturbate at least once a day.

If my husband is not in the mood, he tells me that I can masturbate in the bed beside him. He doesn't care and neither do I. We both have needs and we agreed that as long as we don't go outside the marriage, it's fine to use a toy. At first, it was a little weird but now I'm used to it. Sometimes he will change his mind and join in after all!
As far as how often, I orgasm at least daily unless I'm not physically able (like I'm sick or something) either with him or with a toy.