yea, they stopped the hand stamp years ago.
just need your park ticket.
if you want to buy something in the shops at uo, you don't have to carry it around with you all day.
when you make a purchase, tell the TM you want the items sent to will call at the front of the park.
they will wrap/bag the items and give you a claim ticket.
you show that ticket when you pick up your purchases.
if you lose the claim ticket like i usually do, the TM will ask you to tell them what is in the bag before they will give it to you.
you could always take a picture of that claim ticket with your cell phone/camera just in case you lose that stub.
last year, it took about one full hour before my purchases were tagged, recorded and available at the front main store for my pick up.
this pick up service is not available in the last 90 minutes of park hours.
if you use this free service so you don't have to carry items with you, ask the TM to tell you the details for this process.
all day guests, offsite hotel guests can use this shopping free service while in the parks.
in case you forget to pick up your items, they will eventually be mailed to you at your home.
if you are staying onsite, you can use this service or have your purchases delivered to your room the next day.