Select 15-20 of the works by the direction in which you want to make a portfolio. Work should not be too small, otherwise the employer will think that you are a beginner or a little work. If the work is too much, then they can get lost or the customer just will manage a portfolio up to the end.
Collect most of the good work and medium level. It is important to arrange them nicely and keep in electronic form. If it's the lyrics to a freelancer, it can be a text file, or some different. If the work of different subjects, it is best to divide them into several folders. This electronic portfolio can be placed on the Internet and to carry, in any case, you have something to show to the potential customer.
Don't try to show itself exclusively with the best hand. The customer understands that you are not a robot and always give a perfect result can not. More important to show the average work by which he will judge about your stable. The best placement of work in the portfolio as follows: first good job, then some medium, in the middle of the portfolio, also one or two outstanding work again, a few medium and excellent final work.
If you post a portfolio online, you need to take care of the links. Place them on your cards, exchanges of remote work, on a personal website or on the forums. Exchange remote work is a very good option, because there as the first contact customers, however, remember that this is a paid service.