The thing is following deals sites, getting the best credit cards and the best price for a given product is practically a full time job. Amazon decreases the price on some product by 90% for 15min - if you don't check the site in this interval you missed it.

IMHO it's a far better strategy to spend your time on growing your business or salary. Also don't buy crap just because it's discounted (unless you have a ton of free storage). Minimalist living is very satisfying.