Kitchen Gadgets

Dh was outstation for most of this week so I was cooking western to appease my kids appetite. I cooked black pepper steaks and lamb chop with mint sauce . It didn't really turn out as I had hoped. The recipe said fry the steak a few minutes on each side for rare , add a few more minutes for medium and more for well done. It didn't happen like that. I was cooking on my really old tefal pan and I was wondering was it time to buy new pans? My mint sauce didn't happen either as my made in china knife was soo blunt . So I went to the mall to get the knife that you can rock from left to right , right to left to slice up fresh herbs (what's it call? I saw Nigella use it once). I found one in a shop that specialise in kitchenware. It was originally $19.95 but reduced to $11.95. I used the herb slicer yesterday to slice fresh dill and oregano for scallops with dill butter sauce and spaghetti marinara. My kids loved the seafood , I would have to do this more often.
I was also looking out for some new pans. I scouted Myers dept store for Tefal pans but could not find any. Even though they had 30% off kitchen utensils, the branded pans were insanely priced from $119-$199 per item. I didn't know the price of cookware could be so dear!
I was scouting again one day and suddenly by chance I found a Breville cast iron cookware that had red price tags on them. One griddle pan had be reduced from $139 to $83. The color was being discontinued. It was my fave color ie light blue so I thought I would get it. They gave an additional 30% so I only paid $58 which was a bargain I thought for cast iron cookware. So now how and what do I use the pan for?