Another way could be to use another deck! Have another deck prepared in you pocket or in your bag! Say you done, then put the deck into your bag, and do something like "Actually, let's try one more trick!". Then you've secretly stolen the other deck!
I can fully back up that recommendation! A so-called "deck switch" is very powerful, indeed. Also useful if you want to insert an effect with a trick deck and you have fully established among the audience that you are using regular non-gimmicked cards.
Some further suggestions can be found in Annemanns "202 Methods of Forcing". They require some practice, but it's well worth it.
If you are sitting at a table a simple "change of hands" under the table (actually, also a "change of decks") might already do the trick. A card holder will make this easier.
Also change bags and even (at intermediate to large distance) a sufficiently large mirror glass work great.