Logos are a fun challenge. They have to be clean and graphic, and yet convey the company in the correct light. Logos are one thing that takes many hours to make something really simple.
Here are some logos.
For a company that sold home childproofing supplies
Logo proposal for a linen company
Logo for a Jewish educational program for children
For a consultant who deals with stock market analyses
Logo for a company specializing in building mezzanines for industrial warehouses