In episode 666, Rob Walling chats with fan favorite Derrick Reimer, the founder of SavvyCal, as they answer listener questions. They cover topics ranging from idea validation in competitive spaces to book recommendations to development strategies for non-technical founders. Episode Sponsor: Find your perfect developer or a team at Lemon.io/startups The competition for incredible engineers and developers has never been more fierce. Lemon.io helps you cut through the noise and find great talent through its network of engineers in Europe and Latin America. They take care of the vetting, interviewing, and testing of candidates to make sure that you are working with someone who can hit the ground running. When it comes to hiring, the time it takes to write your job description, list the position, review resumes, schedule interviews, and make an offer can take weeks, if not months. With Lemon.io, you can cut down on a lot of that time by tapping into their wide network of developers who can get started in as early as a week. And for subscribers of Startups For the Rest of Us, you can get 15% off your first 4 week contract with a developer by visiting lemon.io/startups Topics we cover:  1:05 – How to validate ideas in competitive markets 7:49 – How to manage stress when growing a small SaaS business 15:48 – Finding a technical co-founder vs. outsourcing development 28:24 – How to decide between doubling down on a current project or starting a new SaaS app 34:15 – Tools for tracking traffic, conversions, and A/B test results 40:21 – Recommended reading for SaaS startups Links from the Show: Derrick Reimer (@derrickreimer) I Twitter SavvyCal  The Mom Test by Rob Fitzpatrick Ruben Gamez (@earthlingworks) | Twitter Pieter Levels (@levelsio) | Twitter Danny Postma (@dannypostmaa) | Twitter Fathom Analytics, Mixpanel, Heap, Segmetrics.io, June Optimizely, VWO, Hotjar, Crazy Egg