Remember to put on your tefillin when you put on your tefillin
When you put on your tefillin, it's easy to just put them on by rote. But you can just as easily remember R' Nachman's Likkutei Halachot, and when you wrap the hand-tefillin think of and connect with Klal Yisrael. When you donn your head-tefillin think of and connect to HaShem (if you feel too distant from HaShem at present you can connect to the true tzaddikim, who exist solely for the purpose of helping us connect to HaShem.)Now you've put on your tefillin.