When you are working in the office, just spend a few minutes, even four or five minutes might be enough, to be with your body and with your breath. This has two advantages: one is it helps you to develop awareness and the second is that it helps you to create some space from the stress that can arise as a result of just continuing to work without such spaces.
Another suggestion is – again just a few minutes may be enough – for you to observe your state of mind: are you relaxed, are you calm, are you anxious, is there stress? – just to know what is happening in the mind during the day. A third suggestion related to meditation of loving kindness is, again just for a few minutes, to spend some time feeling friendly to yourself and also radiating thoughts of friendliness to others in the office. In the main text that the Buddha presented which describes how to develop mindfulness, it is mentioned that even when we go to the toilet we should try to be aware of what we do in the toilet. So however busy you are in the office, you go to the toilet maybe once or twice in the day and it’s a very nice situation, you are completely alone with yourself and then you can do some toilet meditation! So it is very interesting how the Buddha offered us some very practical suggestions for our daily life.