The simplest way is to mark each record or group of records and then find all that are marked when you are ready to pull them all together.
This could be as simple as adding a check box formatted field to a layout so that you click the check box throughout the day and then perform a find for records with the check box selected when you are ready. A button can also be used to perform a script that marks all the records in a found set when clicked also.
If you have multiple users doing this, you can also set up a related table where each user has their own record to keep different users' selections from getting tangled together. In a text field of that table you can build a list of serial numbers from each record by clicking a button that "selects" it or you can even have one "selection" record created in this table each time the button is clicked--marked with the current user's account name to keep one user's choices separate from another's.
Awesome thank you - very simple. I will try doing that, thanks so much,