Carpool Benefits:
By reducing the number of employee and student vehicles going to a destination, parking demands are reduced.
Carpooling reduces travel expenses.
It reduces travel time.
It reduces driving stress and fatigue.
It reduces traffic congestion.
It helps to improve air quality.
Through carpooling, both riders and drivers get to know co-workers in their neighborhoods.
A carpool is your ticket to the HOV lanes, so you can get where you're going faster and more comfortably.

MyCasualCarpool.com offers commuters the opportunity to propose park and ride lots for their fellow employees. It is based on what they find convenient. No extra capital investment is needed because the system uses vehicles and parking lots already available.
Carpooling extends considerably beyond the fixed routes and scheduled service of bus and rail systems. Carpooling and some of the shared transport services are planned and operated by either for-profit groups or community and special service organizations.

Sharing rides would obviously save money and time, but conventional carpools usually have problems such as the habitually late commuter who can cause everyone to be late. Such carpools do not usually last long.
Some tips for forming lasting carpools are:
1) Decide who will drive and what time to meet ? Carpools may have a rotating driving responsibility so that co-workers alternate reducing stress from daily driving hassles. Alternatively, there may be one main driver to whose expenses the other driverscommute. Punctuality is critical.
2) Choose a mutually convenient meeting location ? You should meet your carpool partner at a central place convenient to both rider and driver.
3) Discuss personal preferences- Decide ahead of your smoking, drinking, eating, and other personal preference.

There are parking lots that are hardly used during working hours (e.g., many church parking lots) and are thus ideal for commuter park and ride lots. Of course, permission from the proper parties must always be obtained before using such lots.