1. Get all your exams out the way as soon as possible so they dont hold you up during which you fly "unnecessary" hours
2. Fly the cheapest aircraft you can find - it is the same PPL whatever you learn on,
3. Learn at a field with low landing fees, it is surprising how they add up,
4. Fly as intensily as you can, you will learn more quickly,
5. Fly as often as you can with others. They will probably let you do some of the flying even before you get your PPL and will not charge you,
6. Buy your books etc on eBay or from another club member, the cost of new books adds up,
7 Make sure you get a good instructor from the start. Find out by asking other students. There are some really bad instructors around and you will waste a lot of money with them.
These tips will not necessarily make you the best "student" pilot but will save you money in getting your PPL. For example, if you then want to go on to flying something more complicated than you learnt in, you may find the savings you made in learning on a "basic" type are lost in the "conversion" to something more sophisticated.
PS I have assumed the other interpretation of your question!!