How to remember to tighten all the bolts
 

What they do manually assembling Rolls Royce is mark the bolts with yellow paint as they are tightened so that workers clearly see which are done and do not miss any. This is the method you can adapt yourself when working on own car doing repairs.

A technique I use with an added attraction. Once the bolt is torqued down ensure your paint blob also touches the point on the chassis/block/body so you can see if it is coming undone! :o)