Entangle and Web are two of the most powerful (low level, 1st - 2nd) spells out there....but only in certain situations. Entangle doesn't work indoors; web doesn't work in wide-open spaces.
For some reason, the designers thought this "limitation in use" is counter-balanced by "more powerful than they should be" for their level.
I couldn't disagree more.
If the spell can't be used in a situation, the caster won't memorize it or cast it. It's just that simple. The opportunity cost is minimized in almost all situations. Put another way: the player can (with a little fore-thought) easily minimize the downside of these spells, while taking advantage of the spells' up-sides when they are in the right environment.
Currently, there is only one effective low level magic solution (SRD-core): Grease. (for only a +10 to the Esc Check, BTW; it's not a sure thing.) If you don't have that handy, yer hosed. Anything else either a) damages you or b) helps in only a minor way (ex: Alter Self, Bull's Strength, Cat's Grace, Enlarge Person, maybe Levitate).
Non-magical solutions are marginal, at best. Even that nifty "flour the web" example above. (Fun idea...but not practical when trapped.)
......That said, you'll not find many players complaining about these two spells. My players, in fact, protested vigorously when I tried to nerf these two spells. Strange, huh? ...oh wait, PCs use these spells more than monsters, don't they.......