Most of the time I take with me my m2 , a 35mm nokton and a 21mm skopar (plus a small, basic lightmeter). When shooting with a SLR, I use most of the time a pentax me/ me super/super-a and a 28 or 35mm lens. I like to carry my gear in the pocket of my coat, whenever I can.
Occasionally shoot 6x6 on the street. The most convenient MF lens is the 65mm flektogon, which I pair with a kiev or pentacon.