The long anti slip wrench sets were a great deal last year, & I sometimes find deals in the closeout bin. Otherwise Ebay has had some great deals on Carlyle/ NAPA tools.
With my 07 Sienna, we just drain & fill a 3 quarts through the dipstick hole. Doing this twice, a hundred miles apart, extends the transmission life significantly.
Any honest, well informed source, would tell us to invest our money in a low fee S&P 500 index fund, then use our time doing something fun & productive. We are all guilty of not doing this.