  We provide upper and lower bounds for the mean ${\mathscr M}(H)$ of
$\sup_{t\geqslant 0} \{B_H(t) - t\}$, with $B_H(\cdot)$ a zero-mean,
variance-normalized version of fractional Brownian motion with Hurst parameter
$H\in(0,1)$. We find bounds in (semi-)closed-form, distinguishing between
$H\in(0,\frac{1}{2}]$ and $H\in[\frac{1}{2},1)$, where in the former regime a
numerical procedure is presented that drastically reduces the upper bound. For
$H\in(0,\frac{1}{2}]$, the ratio between the upper and lower bound is bounded,
whereas for $H\in[\frac{1}{2},1)$ the derived upper and lower bound have a
strongly similar shape. We also derive a new upper bound for the mean of
$\sup_{t\in[0,1]} B_H(t)$, $H\in(0,\tfrac{1}{2}]$, which is tight around
$H=\tfrac{1}{2}$.
