all techniques above are good one. this may speed things up a little bit.

download Atomic Web browser from iTunes ($0.99). use the auto fill function for your employee number and password. for some reason I can't get Safari to remember them. you can either use the phote or pdf technique for the grid code.

BTW. clearing the multi-task bar will increase battery life. this can be done by double tapping the apple button opening up the multi task bar. then press and hold one of the items on the bar until you get the minis signs on them. tapping each one will delete it from the bar and close out that app.