Larger purchases (over about $500) should be arranged beforehand with WEEF, using a purchase order.

For smaller purchases, it is generally faster and easier to simply pay for it yourself, and submit a "request for payment" form to the WEEF office for a reimbursement.

There are a few copies of this form in the solar lab, otherwise you can get one from the WEEF office or one of the undergrad secretaries.

Just fill it out with your name, address, etc., and under "reason for the request" put "WEEF refund for STEP ______ project."  Leave the entries in the accounting flexfield and whatnot blank.  Include photocopies of your receipts, and a printout of your credit card statement (if applicable).  Completed forms can be handed in at the WEEF office, or put into the WEEF mail slot in the EngSoc office.

Instructions can be found on the WEEF website:  http://www.weef.uwaterloo.ca/purchasing.html