It's a long drive, but if you are planning to buy a lot of clothes it's worth the trip: Last weekend I went to Zweibrücken for clothes shopping. There is a huge outlet center and I know no comparable one in Switzerland:
http://www.thestyleoutlets.de/
Some examples of the prices of the stuff I bought:
Quality Nike sport socks: 2.50 a pair (regular price in DE is 8 EUR and the wife bought the exact same pair in CH for 15 CHF!).
"Brax Golf" polo shirts: 20 EUR (Regular price was 99 EUR) and yes, they sell for 150 CHF a piece on CH high streets...
Brax golf pants: 30 EUR. No idea what they cost here, but more than the shirts...
Great "Strenesse" linen shirt for the office: 50 EUR (from 150...)
Casual Nike shorts: 12 EUR (from 60 EUR, I am sure they would not come cheaper than 90 CHF here)
Last but not least: The look on the Swiss customs guy realizing just how cheap your shopping was when controlling the receipes: Priceless.