diy color developing

so after many black and white films, i thought it would be the right time to develop color film at home. i used the tetenal colortec C-41 kit. the film was a fuji press 800, expired in 2005. the results are quiet ok - i love those color shifts of the expired film. but in the future i'll bring the films to the lab again. i need more time to shoot pictures, than to develop color film.