One of the lessons we all have (or should have) learned from the great melt-down of 2008-09 is how to get things done on the cheap. This is especially true for the majority of startups and small businesses that found investors were scarcer than buyers for homes and the seed/startup money had dried up like dew in the desert. For many ventures success in the last 18 or so months has been defined as survival, and that has been possible only by leaps of creative resourcing.
For those who embrace the frugal entrepreneur's path to future wealth and success, 'The Toilet Paper Entrepreneur' by Mike Michalowicz is a good read. It's a light-hearted but spot-on collection of tips and guidelines on building your venture with innovation if not big bucks. (You can also read ReadWriteWeb's post on this book here. I think I've written about the entrepreneurial passion about a zillion times, and was happy to see it features hugely in this book too, as Mike's take is that finding your passion is the first step to launching a successful company. Coming to think of it, have you found any successful entrepreneur who says you don't need passion?
Check out TPE - it could be just the energy shot you need to keep pushing (no pun intended).