Flushing a system unless there is something drastically wrong with the coolant is a waste of time and money. If you look up the factory service manual for your Toyota, Honda, etc you'll see the recommended coolant change procedure is just to drain and fill the radiator. Modern Toyota SLLC coolant is good for 12 years or 120K miles so changing ever 2-3 years is a little excessive.
Also I wouldn't really worry about swollen hoses on a 16 year old (2005) Toyota as it really isn't that old for the hoses to start failing.
Also I wouldn't really worry about swollen hoses on a 16 year old (2005) Toyota as it really isn't that old for the hoses to start failing.