I have to say that having been caught out in my early days and not being able to perform with a straight deck I now entirely depend upon one.
I use a Waddingtons deck because I like the linen finish which helps with sleights and also the deck is well known in my area (Yorkshire). To be honest, Bikes in this area would alert suspicion because they are not the norm.
That said, when I go out to perform I carry everything in my jacket pockets, and that includes 2 decks, a straight Waddingtons and a Keith Bennett Nudist Deck.
The later because its such a strong effect so damn easy to perform and boosts my confidence at the start of any session and the former because I can happily sit and do 2hrs non stop with a straight deck (not that I do

).
I also intermingle coin effects, ESP card effects, pen thro and Card Warp which is an absolute killer and never fails to get a strong reaction. As does Wiregrams.
Simple demonstrations of sleights also knocks people for six. One I do regulary with a pub deck is a demonstration of all the different shuffles possible followed by 20 or so different cuts and then dealing the 4 Aces off the top.
Yes, I know that I put them there at the beginning, and the spectators suspect it because I did it in front of them but after all the shuffles and cuts they are dumfounded that they are still there

Tenko.
Yorkshire, UK
Male, 55yrs old, Retired.
"I don't believe it" Luke Skywalker
"That is why you fail" Yoda