hahaha, this thread a bit slow, so here I go OTing. Mods please delete if any of you find this post not appropriate.
Nowadays with all kinds of cards, men's standard wallets having 6-12 slots for cards are just not adequate. Even if you can manage to squeeze in all the cards, the wallet becomes thick.
Myself, I use to have a cheap Bonia wallet that can hold 12-15 cards until my wife bought me a
LV Multiple wallet which has only 6 slots for cards but I manage to squeeze in 7 CC, JJ card (free parking at JJ), IC and driving license. The rest of my cards are in a elongated wallet which I bought for 70% discount at Robinsons,
click here to see it. And I carry a sling bag (for years now) for the elongated wallet together with my 3-4 phones, house keys, car keys, pens, other merchants cards, hair brush, hacks, fags, lighters (keep loosing them) and can also fit in an iPad. And many people have commented that I either look line Ah Long or VCD seller (last time worst, use to dye my hair blonde), hahaha.
milentechie, time for you to carry a sling bag too

Thanks for the suggestion. Agreed with what you'd said. I am finding ways to reduce the thickness of my wallet. Thinking of getting another wallet/card holder just for storing the cards.
Yeah...a sling bag or tote bag might do the trick to keep everything that you are carrying while on the move.
I also found some interesting credit card holders in Amazon.com that come with protection from RFID scanning. Some can hold up to 10-15 cards.