If you are helpful by nature, it can be a challenge to complete your own tasks while also completing tasks for colleagues. An employer will usually welcome a dedicated employee who is willing to take on responsibility, but not if it means you end up missing deadlines because you’re doing too much at once and lose track. If you highlight it as a weakness that you have difficulty saying no, you also imply that you are diligent, willing to serve and hard-working. However, remember also to address how you will ensure that you don’t overwork yourself, and actually get your own tasks done. Example: “My greatest weakness is that I find it hard to say no when my colleagues ask for help with tasks. This can lead to me losing track and feeling under pressure. However, I’ve found that I can use tools like calendar reminders and apps to plan my time so that I don’t get overloaded and miss deadlines.” A potential employer is unlikely to welcome an employee who does not know his or her own limitations, but will look more favourably upon a candidate who takes the time to help colleagues without taking time away from his or her own tasks.