One particular thing which I've disliked so far is using the built in contact form on Fresh Store Builder - it's wide open to bots/spammers etc sending you junk. It also sends blank e-mails too if visitors just press the send button without entering any text. So, I've added a simple CAPTCHA element to mine to solve this, by editing two files, it seems to work nicely so far. Here's one of my contact pages for example. It also sends a copy of the e-mail to to the original sender's e-mail address. Happy to share this, if people would like it - please PM me and I'll customise the files for you and send over, it's an easy file replacement then.