Welcome to AT sapphirehime
Anyone who is familiar with standard tarot minors could use a playing card deck, you would just mentally transpose the 4 of swords image onto the 4 of spades, the 9 of cups onto the 9 of hearts etc.
That said, I know from older posts a few of our members carry playing cards out in the real world to use if they are on a train or sitting in a cafe because they don't seem to arouse the ire of passers-by
And because they just enjoy using them. Me, I'd miss the input of the Majors.
Joemit has quite a bit to say about using them here
http://www.tarotforum.net/search.php?searchid=2820335