Fortunately for me and my poor mobile phone, I always keep the amount of contacts to a minimum. On the other hand, the address book of my main email account holds more people than those living in my neighborhood, and we're talking about a pretty crowded one here. Anyway, if you're looking to find a contact management program to serve you, Contactizer is a pretty smart choice.

This CRM application has been around for quite a while, since now Objective Decision announced version 3.7.3 of Contactizer, together with the Pro version, also a new release that makes contact management even more efficient and inventive than before. Before moving on to the features part, I think we should introduce Contactizer to those who missed meeting it so far, don't you think?
An all-in-one solution for keeping your contacts in order, Contactizer also allows you to share and organize your information as easy as possible, thus helping you a lot of time. The more contacts you have, the more time you save, that should be obvious, I guess.
According to its producer, Objective Decision, Contactizer 3.7.3 has "20 new exciting features and enhancements," the innovations including Dayboard, the new standalone companion, a Cover Flow mode only available in Mac OS X Leopard, as well as a bunch of user interface improvements.
Freely available to Contactizer 3 users, Contactizer 3.7.3 also comes at the same time with a new app from this family, namely Contactizer Express 3.7, build using the same core as Contactizer Pro, and targeted towards freelancers and very small businesses.
Available for $119(EUR99), Contactizer Express or Pro can be tested for free, and if you want to find out all about it, the official page is the right place to start.
Just one more thing and I'll go - not even a contact management program can make your hours longer, and if you really want to get the best out of it all, be sure to also use some time tracking/planning method as you go. It could be a notebook... or some piece of software, it doesn't really matter, but you should never forget that time is your most valuable asset!
