So let me preface this with I’m very new to any crypto. I’ve bought btc a couple times through cashapp and transferred to an external wallet before making purchase. I’ve used a different external wallet each time as I had seen that recommended even though I’ll admit I’m not sure why. I always buy a little more btc Thani need because I never know exactly how much the feed will be after it’s all said and done. The problem I’m running into is I now have several different wallets with very small amounts of btc left in them that I can’t transfer to another wallet because it’s not enough to pay the transfer fees to send it. Is there a way to transfer these balances without paying a transaction fee or what would be the best way to avoid this in the future? Should I just use the same wallet that I already have a balance in and is that safe to do so?