First, put the cat carrier somewhere that it can't be moved - the bathroom idea sounds good.

Then, when you catch him, scruff him by the neck - the way a momma cat carries her young (only don't lift him up - just do this kindly, but firmly, to show him who's boss).

Having a no-nonsense demenor can go a long ways - if he senses that you aren't 100% committed to getting him in the carrier, then he'll bolt.


good luck!