One other thing I do with my travelers checks, I make a note of the numbers and what day envelope they were put in. Keep that list in my Disney Planning notebook. Then if something gets lost or stolen, I have a better idea of what to claim without making notes as I spend. I do make sure I have small amount of actual cash on hand too, but since I make tip envelopes for each day, I usually don't really need much cash. I also purchase Disney gift cards when I do my grocery shopping throughout the year for some of my spending money.
I just like the envelope system, keeps me from overspending and I am much more careful about what extras I really want or need. I have my credit card that I only use for car rental handy, just in case of a real NEED, but that has never happened.
We each have our different ways depending on our needs, budget and habits. When my kids were teens, I got them the Visa gift card, that way they could spend as they wished and if they had money left over, well it was theirs to spend at the mall. The one thing I did not like was the fee attached to the visa gift card, don't like the idea of paying for that.
Also I purchase or earn gas gift cards, use them for travel instead of cash, also don't have to go into the station if I do not want to as you simply swipe the card the same as you would for a credit card purchase.
You guessed it, they are kept in my travel/gas envelopes.
I am a worrier, I worry about being robbed, so I hide those envelopes, all the Disney tips, mousekeeping tips, daily allowance, etc only keeping the one needed for travel expenses in my purse. Love when I can lock them in the safe once in our room.