cross the stream where it is shallowest
To do something by using the easiest method available. Let's just cross the stream where it is shallowest and find a spot that you can pull right in to—don't worry about parallel parking.
Cross the stream where it is shallowest.
Prov. To do things in the easiest possible way. Jill: How can I get Fred to give me permission to start this project? Jane: Cross the stream where it is shallowest. First ask Fred's boss for permission; I'm sure she'll give it to you. Then Fred will have to agree.