Some CFl bulbs are great. Some are much dimmer than you have any right to expect. Some die much sooner than they ought to.
When a CFL bulb dies, check to see if there's a phone number on the bulb. If there is, call it. You will answer a few questions, and they may send you a new bulb. You do not have to remember how long you've used it, nor do you need a sales receipt. Just make that phone call to get a free replacement under warranty.
I may take a few days off from blogging. Hey, it's August, right?