laundry
There are small laundry shops located at at numbers 223, 239 and 239 on the main strip, Changzang Road, that will wash clothes. They are easily identified by the clothes hanging from the ceiling. It generally costs ¥2-5 per article/pair of clothing and you can pick up your clothes the next day. If you're in a hurry the clothes can be dropped off in the afternoon and picked up in the evening, but they will still be moist.
internet
There is an Internet place with decent connection speed though no printer. It may rank as the biggest smoke den in all of China. Walk to the road bridge crossing the river in the middle of town and follow the stream north away from the big river towards the monastery. After 300m, you will pass a pedestrian bridge on your right hand side. Shortly after that, there is a small concrete 'picnic' sitting area on the right. The entrance to the second floor Internet cafe is up the private looking staircase just opposite that place. There are no signs advertising the service, so if in doubt just ask the neighborhood.