I highly recommend attending a Dave Ramsey "financial peace university" course. They're usually taught for free at various places including churches or other open private facilities, and all you pay for is the workbook and study materials ($80-$120ish depending on specials). The course is 100% gimmick free, based on sound financial advice and a realistic common sense approach to finances.
Dave's students on AVERAGE are debt free including their home mortgage in only 7 years, without relying on a single gimmick or investment trick. If you follow his step by step approach, there is no reason you couldn't retire early as a millionaire. The only sacrifice is having to live cheap for a couple of years and follow a budget, after which you basically end up with more money than you can realistically spend.
His whole "thing" is that you live on a tight budget until you are debt free, pay cash for everything you want to do from then on, and along the way you accumulate wealth until you can't help but start giving it away to charity. Thing is - it works, without a single trick or gimmick. You can change your entire life by simply living on the tightest budget imaginable until you have zero consumer debt except your house, usually only a couple of years even for people with big student loans. One caller to his show today paid off $95,000 in 26 months, including $60,000 in student loans. His approach WORKS, mostly because you track every dollar in and out of your pocket so every single dollar goes to a pre-planned purpose. Do that for a few years and suddenly you have a lot of extra cash and no debt.