Steph, In trying to achieve the proper balance in time spent with W & D, consider your D's schedule to be with each of her parents. When doing things w/ D during your schedule time, think of your W as the guest. It is up to you to invite her to be included in your activities with D. Then when it is your W's turn, then consider yourself the guest which should chose to be included only when invited.
The last thing you want is to be preceived as intrusive, yet will still optimize the potential time you spend with your D.