Inclusion Criteria:  Participant has provided informed consent prior to initiation of any study specific activities/procedures. Men or women ≥18 years old newly diagnosed early stage (stage I, II, or III) breast or colorectal cancer who initiate adjuvant systemic therapy after curative intent surgery. Participants or their caregivers will need to have a computer and internet access at home and be willing to learn to use and enter data via the web-based portal (REDCap). For the purposes of the current study, fluency and literacy in English will be required.  Exclusion Criteria:  Lack of fluency or literacy of the English language. Lack of access to a computer or internet at home. Inability to complete or enter data on the REDCap system. Early-stage breast or colorectal cancer patients who are not receiving adjuvant chemotherapy (patients undergoing adjuvant hormonal or targeted therapy alone without chemotherapy will be excluded). Has known psychiatric or substance abuse disorders that would interfere with compliance with the requirements of the trial.