Where shd i tithe to?

btw, wife is ok and back to work now.

regarding this issue of tithing, had some discussions with my wife some days back. ideally, one shd tithe where he worships. in short, he shd tithe where he "eats grass" - i mean wherever he gets his spiritual food. however, i am kind of inclined to tithe a portion back to vfc or even, bethel assembly (an indian church here).

why?
1. the expat (mainly ang mo) church which i am attending now has lots of expats. the church has sufficient resources - in fact, she is rich.
2. I tend to see a greater need in vfc (esp in regards to non-stop missions, buildings and offerings...) and bethel assembly (this is a church servicing mainly indians. the building is pretty rundown and we all sit on the floor.) which i attended before.

one way of argument is that i am still in contact with friends and my dear AM in vfc - so in this sense, i am still getting spiritual food from vfc and this allows me to save the money till i return to tithe. a portion can be reserved for this.

as for bethel, i can attend their evening service once a mth or 2 mths. this allows me to tithe there as well. again, a portion for this.

the problem with tithing to vfc is that the money has to be "kept aside and accumulated" - this may not be healthy (as the tithe must be given first) and it gets "slightly more and more difficult" to give when the amt is getting big.

what do people in vfc think?