I have pencil erasers, and I'm cheap, which is not a good combination. I buy the 3 pack sport bras from the department store. they are like little half-tank tops, with no cups or anthing, just tubes with straps. Worse, they are cotton, but they are the comfyest thing for running and biking. But I still show through every layer.

Haven't tried bandaids yet but have used folded toilet paper. Sigh.