I assume this comes just a few days too late, but maybe it is of use in the future:
Maximilianstrasse, Residenzstrasse, Theatinerstrasse, Brienner Strasse are visually very appealing streets where you will find some art galleries and most high-end stores. This includes the usual international labels, but also a few local stores including
- Ed Meier (make sure you go to the store at Brienner where they sell now their own clothing and shoe lines. You find a selection of EGs, C&J and a few other nice brands in the adjacent store called James Dowie, which is owned by Ed Meier. The store in Residenzstrasse now serves as outlet.
- Max Dietl (selection of Brioni, Kiton and Attolini)
- Lodenfrey (upscale department store with nice selection of Italian suit makers as well as quality traditional Bavarian clothing)
There is a Kiton store a bit off the main shopping area at Oskar-von-Miller-Ring 1. If you like Canali and Caruso it is also worth checking out Hirmer at Kaufinger Str. 28 or Eckerle at Theatinerstraße 3. They have nice selections and prices should be much better than in the US as long as you ensure you get a VAT refund when flying out of the EU.
For food shopping, it is worth strolling through Viktualienmarkt, the adjecent Schrannenhallen, Dallmayr at Dienerstr. 14-15, Feinkost Käfer at Prinzregentenstraße 73 or Whisk(e)y Shop tara at Rindermarkt 16 for getting a bottle of Bavarian Single Malt (I am not kidding).
Hofbraeuhaus is a must-see, but it is certainly not the best place for Bavarian food. Much better are the Ayinger restaurant just across from the Hofbraeuhaus, Spatenhaus at Residenzstr. 12, Augustinerkeller at Arnulfstrasse 52. If you wanna have Bavarian food in a more youthful environment I recommend Kaisergarten at Kaiserstr. 34 in Schwabing.
Munich also has plenty of international fare including Italian, Greek, Indian, Chinese, Korean, Japanese, Pakistani, Ethiopian, etc.
The best you can do if the weather is nice: Sit in one of the many street cafes (especially at pretty locations like Odeonsplatz) order an "Aperol Spritz" or a "Hugo" and enjoy.
The three Pinakotheken and Museum Brandhorst are must-sees. Also, a tour through the Residenz and its treasury with the Bavarian crown jewels is nice. Note: Munich has three world class orchestras and a great opera, but August is unfortunately off-season.
Enjoy the districts off the tourist tracks, e.g. Haidhausen, Nymphenburg, Isarvorstadt and of course Schwabing. There are nice smaller shops, cafes, restaurants and some architectural little gems.