I'm a 42DD and very droopy. My bras give me *all* my support. I have been wearing underwires since I was 10 years old. I have suffered tremendously with shoulder, neck and back pain for, like, ever. THEN, I found these lovely silicone shoulder strap pads at Dillard's (Dept Store). These things have saved my life! I can actually buy bras at Target and wear them now. They were only $12 and have saved me a ton in expensive bras. When I have a moment I can't locate them, I have a mild panic attack. I need to buy more...
To answer the original question: latch bra around waist and pull up in place, swimsuit style. Ciao!