In investments, a portfolio is the range of the investments held by the individual or organization. It can also refer to a collection of art work or photographs or other collected materials.
i carry my portfolio to work everyday
I think you mean, "portfolio" and it's a book that displays your work. Models, photographers and artists usually use it.
A portfolio is a collection of examples of your work or projects. You don't write it, but collect.
A job seeker generally takes along a portfolio to the interview. A portfolio is a collection of work to present to the interviewer. This should be a sample range indicative of the best work.
A modeling portfolio is the main way clients can see what a model has done in his/her career. The portfolio showcases the body of work a model has done and is basically a visual representation of a resume. Without a portfolio, a model cannot book work.
The beta of a portfolio is the weighted average of individual betas of assets in that portfolio. There is an example of portfolio beta calculation here: http://www.riskyreturn.com/portfolio_beta.html
you work hard
A fashion model needs a portfolio to showcase their prior work and let potential employers see what they've done. Their portfolio includes photos of the model either from past shoots or from private work.
An electric or a digital portfolio is a collection of someone's work that can be viewed on a digital device such as a computer or tablet. One might create a digital portfolio for a job interview.
"Creative Chronicles: A Portfolio of Design" "Innovate Showcase: Reflections of my Work" "The Artistry Collective: A Portfolio of Creations" "Design Diaries: Exploring Imagination and Innovation"
The best way to display a web design portfolio includes a breadth of work, appropriate examples, context to one's work, non-client work, regular spring clean, case studies, all-round experience, sell self, and index design portfolio.