I have boobs! They're big and I hate bras because they always dig into my side and I totally have little scars from years of the skin rubbing off.
In college I only wore sports bras, but this summer I finally womaned up and bought some underwires from Lane Bryant. This bra:
Lace plunge bra at Lane Bryant has been the best thing I've ever bought. It has little air bags that you can put in or take out for more or less cleavage, which has been awesome since my boob size has dropped and risen seemingly without provocation after I started exercising.