After a study tour abroad
Make sure you retain relevant course certificates and the like for any merits to be credited.
Consider having a current status meeting with your supervisor to discuss issues that were positive on your tour and how your project has developed as a result.
Soon after you get back, make a statement of any travel expenses payable by the University or other parties.
Share your experiences
If you have experiences on the period after a tour abroad that you would like to share with other PhD students, feel free to enter them in the comments field below: