Most of the time they don't even open the box if you make it look like it's never been opened.
Do you have any tips?
Only thing I can think of is to peel the sticker off very slowly.
buy new ds lite, walk out to your car, put in your trunk...
now go back into store, with receipt of course, head and get another ds lite...
now go right to their return counter with your receipt and that unopened ds lite...
get your money back....
enjoy your free ds lite...
you can vary this by using different entrances/exits..
you can also walk out over and over, with more of the same item free...
they stop you see receipt let you out because its item on receipt...
then after getting 8 in your trunk, return and get 9th to return for your money back...
works best at big box walmarts stores...
i like dots...
remember, this advice is for scientific purposes not for defrauding walmart...
that is just a nice side effect...
if you just want to buy, replace with your old, return.. without actually 'stealing'..
which is what you are doing even using this method really..
but use a hair dryer on any taped areas to loosen the tape it will keep factory seal...
when you reseal the box with it, giving the appearance of unopened.