Light shines gloriously on those who use tape dispensers.
Here's the deal: not all washi tapes will fit, but most do. The plastic dispensers make the tape much more bulky, so I only put two of my most used washi tapes in them. The dispensers also make it very easy to tear and you get this cool (I think) look at the end:
And you can pat yourself on the back for RE-USING!!!