Fill out this google form time each time you donate clothes. Put clothes in the teal-labeled boxes near the three main entrances of Energy (teacher entrance, front office, and carpool entrance). 

When you attend the clothing swap, you can show the email receipt of the google form submission to volunteers. They will give you the corresponding number of physical tickets, which you can exchange for other clothes. 

Please be honest when reporting the number of clothes you donated, and make sure clothes are school appropriate :-)!