If you go into a project with someone who does not have an easy time on the computer, acknowledge it up front. That way you won’t have impossible expectations.
If you are the one doing most of the detailed work and something is really bugging you, speak up.
Make up an outline together and determine which parts each of you wants to work on individually. After you do this, you should edit each other and add or delete. You’ll find it becomes difficult for someone else to tell where one leaves off and the other begins.
If you are working with someone who needs lists or assignments to keep them on track, give them their lists or assignments. Do not assume they should know what to do next.
Accept that life happens – illness, moving, divorce, marriage, family and other commitments can all interfere with your project.