E-visa Tourist 28 days
Yangon International Airport (RGN); Present PRINTED COPY of approval letter @customs

Main city is walkable; also use public busses, train, pedi-cabs and taxis

Chan Myaye Guesthouse: So nice, I stayed there twice!
(in private room $20-$22 USD per night)
Dorm beds (fan only), singles with A/C en suite or shared bathroom
Great location, yummy breakfast included, sweet staff
So many stairs

Must-See: Shwedagon Pagoda

8,000 kyat entry, huge complex
No shoes, floor gets very hot mid-day
Keep shoulders, knees covered
4 entrances (north, south, east, west)
Contains Buddhist relics, possibly the oldest stupa in the world (2,600 years old)
Walk clockwise, Know your birth day of the week so you can stop at that section of the stupa

Also:
Sule Pagoda: Downtown near city hall, Ancient Buddhist stupa, site of 1988 Uprising

Bogyoke Aung San Market: Jewelry, arts, crafts, clothing (closed Mondays)

Circle train: 3 hours, under 500 kyat, see a lot of scenery and locals

The view outside the city on the Circle Train

Kandawgi Lake - FREE, nice green space, playgrounds (east of Shwedagon)

Peoples Park - west of Shwedagon, green space with museum, 5,000 kyat entry

Botahtaung Pagoda - Near Yangon River 3,000 kyat entry
(The rest of the river is mostly industrial.)

Feel free to ask more specific questions or for advice in the comments.
Much Love,