Sandy Carter, COO of Unstoppable Domains, has advised companies to allocate 1-5% of their corporate treasury to Bitcoin. Speaking on December 28, Carter suggested using dollar-cost averaging for entering positions and emphasized the importance of tracking these investments. She also recommended that if Bitcoin holdings exceed 2% of a company's liquid assets, firms should wait for positive ETF inflows before further investment. Additionally, Carter highlighted the significance of technical analysis in timing market moves for cryptocurrencies.