If you can’t afford tape or a swim binder, you could use a binder that’s a size too big or an old, stretched out one. When pulling off the tape, wet it off with baby oil on a cotton ball before pulling off. It helps to soften the sticky adhesive from the tape. Wear a sports bra if you don’t have a binder or tape. Try not to worry too much about binding if you’re just laying down at the beach. Most people won’t really be paying attention.
Wear a shirt with a design on it to draw attention to the design, not your chest.
Don’t wear very short trunks. It’ll bring out your hips more, which you don’t want. Go for longer, straighter shorts instead.
Make sure it doesn’t fall out when you’re swimming. You can avoid this by wearing somewhat tight underwear underneath the swimsuit or trunks. You’ll probably want to go for boxers with a pocket or pouch if you’re wearing swim trunks. Some companies make swim trunks designed specifically for packing, like Underworks or TranZwear. You might want to invest in those.