Thats one of the best things to do is have a second look. A little tip as you work on your bike break down what you are doing into smaller jobs in your mind and then take each step and recheck before you go on to the next. It really is the same thing but it saves you time because it allows to recheck without full reassembly and have the confidence that what you did in the previous step was good. Kind of like building a house and laying the foundation then the next step and next. Then when you are all done you can do a final look see to verify.
