Most library databases will give you some option to 'save' results temporarily in a folder.
This is a bit like a shopping cart, but keep in mind that if your database session times out after you've stepped away for a bit, you will lose the items in your folder. The folder can be really helpful when you've done a search, and see several useful results that you want to read later.
To add items to a folder:
See the gif below to see this in action:
The email tool lets you email yourself citations, PDFs, and links to the articles you've found so you can read them later.
See the gif below to see this in action: