I got sent this link recently about several cool things you can do when long pressing the keys on your iOS device, some of them I was aware of, but the one I found that has been helpful is
"Tapping the "123" numbers key and sliding your finger to the number you want will type the number and immediately return you to the letter-based keyboard."
Hopefully you can learn a couple that could help you out as well.
I am always interested in feedback so please feel free to add any comments, or you can mail me here. If you would like to submit a quick tip with full credit and links back to your site then also feel free to contact me.