well you sound like some one that is going to make this work, you sound determined. Don't let him buy clothes in a bigger size or he might just keep expanding
Do you like exercise / sport ?

Yes, I feel pretty determined - I just hope I can hang onto that! Actually, I hate to exercise, but I do believe it is really mandatory, so I'm doing it. I don't mind lifting weights - it's the aerobics I can't stand.

Funny you should say that about not letting him get new pants - I'm always telling him to get new ones that fit and he won't do it!

Are you in New Zealand or from there?

from New Zealand and if he gets new pants he might never fit back into his old ones.

Is there are 40's something group? I 'd like to join if there is, I'll be 42 in July.

did you know that exercise can become fun even if you have been some one that hates it.
You just have to start give it some time and before you know it......
So give it ago it may take longer then a few weeks... but in the end you may end up doing some think that you love .