How about your friends? I reconnected with several old friends from a previous job of mine that I had kept in touch with, and it has been great improving my friendships with them. There is a guy I work with too who I will go have a beer with once a week or so, go golfing with on occassion, etc. If you can, use this time to at least establish or re-establish your MALE friendships. If anyone invites you to go do something, ANYTHING that is productive and mildly interesting, do it!
Do it for you, and don't think about her.
Do it for you, and don't worry if it is enough to make her notice.
Do it for you, because that's how you'd want to live your life, meeting new people and gaining new experiences along side them.
Do it for you, because that's what made you attractive to not just her but to YOURSELF back around the time you met her.
Do it for you to take your mind off things.
Just do things for you. Everything you listed off, while they sounds like they may be helpful, are either things you HAVE to do, or sound like chores. That is a big reason why you are having such a hard time with this. Obviously your kids a re paramount but I didn't read one thing you were doing that was FUN! Just have some fun, doing what you like to do.
TG just posted something I never thought of before, and it really helped me as I struggle to come to peace with everything in my sitch. Your wife has given you the gift of time to re-invent you. By all means, use it!
M-34 XW-32 D-7 Found OM's presence 4/09 Separated 12/09 Divorced 8/10 GREAT relationship as coparents since 8/10