It would be most helpful if you would take the time to keep a detailed record of all of your internship experiences. Keep a careful record of the positions that you hold, who you work for — including contact information for future reference, new equipment you were trained on, procedures that you learned, the dates of your assignments, and any notable outcomes. Later on, when you are updating your resume — or even preparing for a job interview — you will find it of great value to review all that you did and all that you learned. This will be particularly important if you undertake a variety of assignments in different apartments working for a number of individuals.